Exhaust options for 23' RS3?

[FIGUY]

Newbie to the forum and soon to be first time Audi owner as well. I lost patience waiting for an RS3 allocation exactly how I wanted one spec'd out, so I caved and accepted a similar build (Turbo Blue) as part of a block allocation. Car is due in a few weeks, and I am beyond excited but the one option I am missing out on is the sport exhaust. I have seen many reviews where the driver complains that even with the sport exhaust the car is too quiet, so maybe I am not going to be missing out on much. Are there any aftermarket options for a cat-back exhaust system yet other than the Akrapovic titanium?

Thanks!
Jeff

[nimri09]

There's a few, but im torn on waiting for AWE Tuning or Boostlogic to make one, or going with one of the German brands that have already made them. Here are the ones I've found so far that are available:



https://www.akrapovic.com/en/car/product/21615/Audi/RS-3-Sedan-8Y-OPF-GPF/2022/Evolution-Line-Titanium?brandId=18&modelId=1223&yearId=6827

https://www.millteksport.com/products/audi/s3/8y-2020-present.html

https://hg-motorsport.de/en/ego-x-catback-exhaust-system-3-5-for-audi-rs3-8y-400ps?c=7692

https://www.supersprint.com/ww-en/audi-rs3-8y-quattro-25-tfsi-2022.aspx

https://shop.lce-performance.de/en/audi/rs3-8y/abgastechnik/961/grail-rs3-8y-exhaust-system-with-tuev-approval-by-lce-performance

https://www.bipolar-exhaust.de/produkte/bp082

[Alex D]

I believe Supersprint and Milltek offers a exhaust for the 8Y platform according to their website. Boost Logic will eventually be offering a titanium exhaust for this platform as well.

https://www.mtm-usa.com/products/milltek-exhaust-system-for-audi-rs3-8y
https://www.supersprint.com/ww-en/audi-rs3-8y-quattro-25-tfsi-2022.aspx

[NapalmEnema]

I think I'm going to shoot for this one next year -

https://www.youtube.com/watch?v=0Zlg1EsyZ24&ab_channel=SpecialConcepts

Provocateur Exhaust - revving / driving start at 5 minutes / bumper mic bits are at 7:50 and are [o_o][o_o][o_o][o_o]

Also - Sport exhaust is lame from the factory - It's definitely waaaay too quiet for this car. I'll keep it to the side but will be getting something else.

[grandpab]

I've seen a few posts about the ASR valve controller. It's pretty surprising how much a valve controller actually changes the exhaust...

[grandpab]

Also, from what I've seen the only difference between the sport exhaust and the standard exhaust is the size of the resonator in the midpipes. The sport exhaust is a few inches shorter. A sport exhaust and the standard exhaust both with the resonator delete midpipes would be the same setup.

[Alex D]

Also, from what I've seen the only difference between the sport exhaust and the standard exhaust is the size of the resonator in the midpipes. The sport exhaust is a few inches shorter. A sport exhaust and the standard exhaust both with the resonator delete midpipes would be the same setup.

The midpipes remove the secondary catalytic converters on the 8V platform and the exhaust setup looks nearly identical on the 8Y.

[RS3TP]

Why don't you just do mid pipes first and then see if you're still in need of an exhaust change?

[Vegasgolds]

Why don't you just do mid pipes first and then see if you're still in need of an exhaust change?

like these.... https://www.getunitronic.com/parts/exhausts/25tfsievo-midpipes

[FIGUY]

Why don't you just do mid pipes first and then see if you're still in need of an exhaust change?

This is going to be my daily driver, so I would rather keep it smelling nice and not have to deal with emissions issues on an annual basis come inspection time. My weekend toys are exempt from emissions and are all straight piped though [drive]

[FIGUY]

Thanks for the list of options. That is great news that Boostlogic is going to be making an exhaust, as I am very familiar with them from the Supra world. Have they shared an eta?

There's a few, but im torn on waiting for AWE Tuning or Boostlogic to make one, or going with one of the German brands that have already made them. Here are the ones I've found so far that are available:



https://www.akrapovic.com/en/car/product/21615/Audi/RS-3-Sedan-8Y-OPF-GPF/2022/Evolution-Line-Titanium?brandId=18&modelId=1223&yearId=6827

https://www.millteksport.com/products/audi/s3/8y-2020-present.html

https://hg-motorsport.de/en/ego-x-catback-exhaust-system-3-5-for-audi-rs3-8y-400ps?c=7692

https://www.supersprint.com/ww-en/audi-rs3-8y-quattro-25-tfsi-2022.aspx

https://shop.lce-performance.de/en/audi/rs3-8y/abgastechnik/961/grail-rs3-8y-exhaust-system-with-tuev-approval-by-lce-performance

https://www.bipolar-exhaust.de/produkte/bp082

[nimri09]

Thanks for the list of options. That is great news that Boostlogic is going to be making an exhaust, as I am very familiar with them from the Supra world. Have they shared an eta?

No problem! Last I spoke to them (a month ago) they will make one eventually but they dont have an 8Y on hand and I dont think they even have one on order. They said they are down a fabricator and have other important projects they need to tackle first. So it might be a while. I offered to send them my car for a couple months but I ended up changing my mind haha. I know how shops are on R&D cars and it would worry me being there for that long.

[GTItoS4]

This is going to be my daily driver, so I would rather keep it smelling nice and not have to deal with emissions issues on an annual basis come inspection time. My weekend toys are exempt from emissions and are all straight piped though [drive]
Unless something has changed in the 8Y, there's no post mid-pipe emissions sensors. Many ROW cars don't have this secondary cat and you can buy the Audi OEM mid-pipe to delete them. Also, many aftermarket exhausts are going to eliminate it as well.

[TToysRuS]

Unless something has changed in the 8Y, there's no post mid-pipe emissions sensors. Many ROW cars don't have this secondary cat and you can buy the Audi OEM mid-pipe to delete them. Also, many aftermarket exhausts are going to eliminate it as well.

Zero smell with the secondaries gone on my buddy's car. There is a still a huge primary cat.

[mtwallace85]

This is going to be my daily driver, so I would rather keep it smelling nice and not have to deal with emissions issues on an annual basis come inspection time. My weekend toys are exempt from emissions and are all straight piped though [drive]

You won’t smell anything from going catless mids and it will improve the sound a bit. I did this with my TTRS.

[noseyp]

You won’t smell anything from going catless mids and it will improve the sound a bit. I did this with my TTRS.

Agree. I have catless mids on my 19 RS3. Comfort mode / valves closed essentially unchanged as well so still 100% neighborhood friendly.

[tateltot]

Definitely +1 to all the comments about the mid pipes. Start there. It's a very inexpensive mod with a huge difference in sound. No smell, by the way. You would need to swap the mids back in for eventual emissions inspection (in some places), but it's a very quick process.

[FIGUY]

Will a car pass emissions without the mids, if no visual inspection is done (car isn't put on a lift)?

[tegxsi]

Depends on your area...
Mid pipes will pass OBD readiness since the secondary o2 is only checking the primary cat.

[mtwallace85]

I don’t think they’ll fail unless it’s a visual. That being said, these can be swapped in about an hour. Not the worst thing ever to have to change them back for the day.

[nimri09]

Just spoke to AWE, estimated November launch for their exhaust system for the 8Y. They have theirs in development already. Gonna get their affordable track exhaust when it releases and call it a day. LFG

[k33psp00lin]

Which mid pipes does everyone recommend? Is it confirmed the previous gen fit the 8Y?

[grandpab]

Which mid pipes does everyone recommend? Is it confirmed the previous gen fit the 8Y?

I've heard CTS fits.

[mtwallace85]

Which mid pipes does everyone recommend? Is it confirmed the previous gen fit the 8Y?

For the 8v RS3/8s TTRS they’re literally all essentially the same thing. Just go with the cheapest option and call it a day. You can even order an OEM set for about the same price as the aftermarket options.

[k33psp00lin]

For the 8v RS3/8s TTRS they’re literally all essentially the same thing. Just go with the cheapest option and call it a day. You can even order an OEM set for about the same price as the aftermarket options.

I was referring to my 8Y, is it confirmed the 8v options all fit the 8Y?

[k33psp00lin]

Thanks, I will probably go ahead and order from CTS since they advertise fitment on the 8Y!

[Vegasgolds]

I was referring to my 8Y, is it confirmed the 8v options all fit the 8Y?

Unitronic mid pipes will fit the 8Y

[k33psp00lin]

Unitronic mid pipes will fit the 8Y

Great, thanks for the recommendation.

[Alex D]

Just spoke to AWE, estimated November launch for their exhaust system for the 8Y. They have theirs in development already. Gonna get their affordable track exhaust when it releases and call it a day. LFG

If it’s like the 8V version, it will be obnoxiously loud. It’s basically a straight pipe exhaust from what I recall

[nimri09]

It's not my daily so I'm totally okay with that. At least if and until something better comes along. Right now I can barely hear the damn car

[NapalmEnema]

It's not my daily so I'm totally okay with that. At least if and until something better comes along. Right now I can barely hear the damn car

Are you going to try the mid pipe swap out? Just curious - Houston here I'd be interested hearing in person if you are lol. Car is super quiet even with 'sport' exhaust.

[nimri09]

Are you going to try the mid pipe swap out? Just curious - Houston here I'd be interested hearing in person if you are lol. Car is super quiet even with 'sport' exhaust.

Not yet, dont want to give the dealer any excuses to void my warranty. Im already having a couple issues with the car and having them try to figure it out. I know for a fact catback and intake wont void, thats all ill do for now until im comfortable without warranty lol. Yeah im in houston, down to meetup whenever!

[NapalmEnema]

Not yet, dont want to give the dealer any excuses to void my warranty. Im already having a couple issues with the car and having them try to figure it out. I know for a fact catback and intake wont void, thats all ill do for now until im comfortable without warranty lol. Yeah im in houston, down to meetup whenever!

Sorry to hear all solid here thankfully, and I plan to not use the dealership as much as possible and have quickjacks for my oil changes and such as well. Good luck with your issue though - I'm going back and forth on the midpipe myself - honestly it's so minor it could be swapped in and out if needed to take to the dealership. If you wanted to swap it I'd be down to help.

[Vegasgolds]

Not yet, dont want to give the dealer any excuses to void my warranty. Im already having a couple issues with the car and having them try to figure it out. I know for a fact catback and intake wont void, thats all ill do for now until im comfortable without warranty lol. Yeah im in houston, down to meetup whenever!

removing mid pipes will NOT void your warranty. It's NOT a performance mod

[noseyp]

removing mid pipes will NOT void your warranty. It's NOT a performance mod

OEM catless midpipes for 8V are standard in Europe due to OPF filter (links below). I acknowledge that they are listed as discontinued but some folks bought them and one had the dealer install. Most catback systems will replace the midpipes with their version of the catless ones. I have uni midpipes and have done service at the dealer with them installed. No issues.

https://cars245.com/en/item/audi-volkswagen-8S0254503A-exhaust-pipe-left/

https://cars245.com/en/item/audi-volkswagen-8S0254502A-exhaust-pipe-right/

[ramo7769]

Maybe I'm dense, so please help me out. But do US spec cars have secondary cats built into the mid-pipes? The Unitronic mid-pipe page only mentions deleting the resonators. I'm curious because I plan to run my car in SCCA autocross in BS class where I'm not allowed to delete cats but can change the exhaust downstream.

[Alex D]

Maybe I'm dense, so please help me out. But do US spec cars have secondary cats built into the mid-pipes? The Unitronic mid-pipe page only mentions deleting the resonators. I'm curious because I plan to run my car in SCCA autocross in BS class where I'm not allowed to delete cats but can change the exhaust downstream.

Yes the midpipes from the factory have secondary cats built into them. Most people swap these out because its quick and doesn't trigger a check engine light.

[mtwallace85]

Not yet, dont want to give the dealer any excuses to void my warranty. Im already having a couple issues with the car and having them try to figure it out. I know for a fact catback and intake wont void, thats all ill do for now until im comfortable without warranty lol. Yeah im in houston, down to meetup whenever!

The catback wont void your warranty but the midpipes will? How did you come up with that?

[noseyp]

Some good information on midpipes in this old thread.

• https://www.audizine.com/forum/showthread.php/789414-OEM-bypass-pipes

[nimri09]

The catback wont void your warranty but the midpipes will? How did you come up with that?

Never said it will void warranty, just said I want to play it safe as catback is the only thing ive personally confirmed so far with the dealers in my area that doesnt void warranty, so I'm playing it safe for now.

[mtwallace85]

Never said it will void warranty, just said I want to play it safe as catback is the only thing ive personally confirmed so far with the dealers in my area that doesnt void warranty, so I'm playing it safe for now.

I asked because both the catback and the midpipes can technically both be used to void your warranty, as can the intake, it just needs to be done visually. Pretty much any dealership out there won’t void your warranty for this because they want your business, so if they’re telling you they won’t void your warranty for the catback, I can’t imagine they’d void your warranty for the midpipes considering they’re 2 simple almost perfectly straight pipes that are about 2’ long.

[mqbhskr]

Pretty much any dealership out there won’t void your warranty for this because they want your business
It's not because they want your business. It's because it's illegal to deny a warranty claim due to modification unless that modification specifically led to the issue in question. A dealer (or mfr) cannot deny warranty on an intake manifold or an infotainment system because you replaced your midpipes.

[Sloz]

Dealer Deff won’t void your warranty for cat-back.
Mid pipe they’ll prob still honor any warranty non engine related and even If you happen to have an engine issue and have a mid pipe on it they may question you a bit but I don’t think they’ll void it right off the start unless you’re being a total jerk to them. They do want your business warranty work or not and they’re more likely to keep you as a customer with a warranty.
The mid pipe only removes the secondary cat the first one remains in place.
I have not heard a car with a non sport exhaust but I can tell you the sport exhaust actually
Sounds somewhat decent. It’s not crazy loud but you can hear the car in dynamic mode and it’s still quite pleasing. Honestly if it’s a daily driver I don’t think I would mind leaving it with just the sport exhaust. I’m doing a mid pipe here In a few days ontop of the sport so I’ll have a better answer then.


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[ramo7769]

Just spoke to AWE, estimated November launch for their exhaust system for the 8Y. They have theirs in development already. Gonna get their affordable track exhaust when it releases and call it a day. LFG

Did they happen to mention Switchpath returning for 8Y? I'm in for that one. Crazy to me that $2500 is the cheapest option for a valved exhaust, but what are you gonna do?

[nimri09]

Did they happen to mention Switchpath returning for 8Y? I'm in for that one. Crazy to me that $2500 is the cheapest option for a valved exhaust, but what are you gonna do?

No they didnt give any details outside of they already have their 8Y RS3 and they are estimating a November 2022 launch. My guess is that it would be the same as last gen, track and switchpath. Maybe the track will come out first if the latter is harder to design and make? No clue.

[signde]

i finally watched some videos of the 8Y launching. sounds rather tame compared to the 8V.

there weren't even any DSG clacks on upshift? dang. i love that sound when i am ripping through the gears at WOT.

[GTItoS4]

i finally watched some videos of the 8Y launching. sounds rather tame compared to the 8V.

there weren't even any DSG clacks on upshift? dang. i love that sound when i am ripping through the gears at WOT.
------------------------------------------------------------------------------------------------------------------------------------------------------------
2019 Audi RS3 - APR Plus, APR TCU, APR Inlet/Intake, APR Midpipes, APR Intercooler, AWE Switchpath Exhaust, CETE Valve Controller, Nardo Grey
Weird. I wonder why... [:p]

[signde]

Weird. I wonder why... [:p]

haha yeah fair point but the DSG clacks where there even before any mods.

[Jcruz87]

Silly question for everyone, do we know how different the 8v vs 8y exhausts are? Wondering if 8v exhausts will fit as well. Probably not, but worth an ask!

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[ramo7769]

haha yeah fair point but the DSG clacks where there even before any mods.

I think by DSG clack, you're talking about the sound associated with fuel cut on upshifts. I've got an 8Y and believe me, the fuel cut upshift sound is all there, so no worries! I believe based on the video and experience with other DCT performance cars, along with calibrating some of them myself, that when launch control is used, "power shifts" are performed. So, there is no engine torque cut and extra clutch torque is used to pull the engine down to the next gear speed. So you'll feel a shove on those launch control upshifts since the engine inertia is utilized for extra drive torque and they'll generally be slower and "slushier" sounding compared to the fuel cut upshift.

[signde]

I think by DSG clack, you're talking about the sound associated with fuel cut on upshifts. I've got an 8Y and believe me, the fuel cut upshift sound is all there, so no worries! I believe based on the video and experience with other DCT performance cars, along with calibrating some of them myself, that when launch control is used, "power shifts" are performed. So, there is no engine torque cut and extra clutch torque is used to pull the engine down to the next gear speed. So you'll feel a shove on those launch control upshifts since the engine inertia is utilized for extra drive torque and they'll generally be slower and "slushier" sounding compared to the fuel cut upshift.

yes, i am talking about "dsg farts" - the sound of unburnt fuel ejected into the exhaust during upshifts.

the 8Y launch video i watched did not have it. have a video or audio of yours for reference?

on the 8V at WOT they are loud, even without any mods.

[NapalmEnema]

Just a heads up for all interested - I'll be getting that mid-pipe for the 8Y just to test it - I'll take before and after video with a GoPro my buddy has so everyone can judge for themselves the difference and such. I'm doing that to see if it adds enough growl for my wife else I will be going for that Provocateur exhaust sometime next year.

100000% too quiet stock, even with sport exhaust. It'll hit some neat notes here and there at full send in a tunnel but not near enough presence for the car that it is and the power it's putting down.

[Alex D]

Just a heads up for all interested - I'll be getting that mid-pipe for the 8Y just to test it - I'll take before and after video with a GoPro my buddy has so everyone can judge for themselves the difference and such. I'm doing that to see if it adds enough growl for my wife else I will be going for that Provocateur exhaust sometime next year.

100000% too quiet stock, even with sport exhaust. It'll hit some neat notes here and there at full send in a tunnel but not near enough presence for the car that it is and the power it's putting down.

Possible to do some before and after dragy runs?

[NapalmEnema]

Possible to do some before and after dragy runs?

Not at an official track / 1/4 mile track, no. This will just be street video spec / opening it up here and there when reasonable to do so.

[coolwater]

I installed the CTS turbo midpipes. Not bad to hold me over for now.

https://youtu.be/hXESoEnwPT4

-cW


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[NapalmEnema]

I installed the CTS turbo midpipes. Not bad to hold me over for now.

https://youtu.be/hXESoEnwPT4

-cW


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Sounds nice thanks for sharing

[GTItoS4]

Sounds damn good. Was that with flaps open?

[coolwater]

Sounds damn good. Was that with flaps open?

That’s right in RS mode with flaps open.

-cW


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[Jcruz87]

I can't also confirm that the midpipes definitely make a nice difference on the 8Y rs3. I am currently running the unitronic midpipes.

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[coolwater]

I just ordered the Milltek valve controller (rebranded ASR RX1) from moddedeuros. https://asr-component.de/gb/begin/180-4705-audi-rs3-8y-flap-control-rx1.html This will allow the valves to be open at all times as well as at startup. I will let you guys know how it goes. https://www.moddedeuros.com/products/milltek-valve-control-system-ssxau972

-cW

[GTItoS4]

That’s right in RS mode with flaps open.

-cW


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So there was no valve controller in that vid? Just RS mode?

[coolwater]

So there was no valve controller in that vid? Just RS mode?

Yep, but I’m going to try the valve controller so I can keep them 100% open.

-cW


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[Yes2m3cs]

Sounds good! Thanks for posting the video. I may go this route before ordering my AWE exhaust.

[Veneeringman]

I just ordered the Milltek valve controller (rebranded ASR RX1) from moddedeuros. https://asr-component.de/gb/begin/180-4705-audi-rs3-8y-flap-control-rx1.html This will allow the valves to be open at all times as well as at startup. I will let you guys know how it goes. https://www.moddedeuros.com/products/milltek-valve-control-system-ssxau972

-cW

It’s a lot better, I ran a group buy on ASN and everyone that bought the ASR report being very happy with it.

https://youtu.be/yXworFU2ftA


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[coolwater]

It’s a lot better, I ran a group buy on ASN and everyone that bought the ASR report being very happy with it.

https://youtu.be/yXworFU2ftA


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That’s great. Do you have midpipes swapped also? I received the unit last night and installed it. Took about 40 mins.

Some tips - There is a 3rd screw to the right top corner of the storage cubby that also needs to be removed. I kept the storage cubby attached, but open and was still able to access it. You’ll need a small flat screw driver for the hood handle clip to be removed. Rest is very straight forward. I will post some clips over weekend. Will give it a test drive this morning.

-cW


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[Veneeringman]

That’s great. Do you have midpipes swapped also? I received the unit last night and installed it. Took about 40 mins.

Some tips - There is a 3rd screw to the right top corner of the storage cubby that also needs to be removed. I kept the storage cubby attached, but open and was still able to access it. You’ll need a small flat screw driver for the hood handle clip to be removed. Rest is very straight forward. I will post some clips over weekend. Will give it a test drive this morning.

-cW


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Uk mate. So we have the fun killing OPF filters [emoji43][emoji1787]


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[coolwater]

Took a few clips of the valve control in action.
https://youtu.be/kwW2QN0KT5E

-cW


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[chi_marketing]

I run the (Bullx) EGO-X catback exhaust system. Its the best.
https://www.youtube.com/watch?v=aNuol5LZoaU

[Vegasgolds]

I run the (Bullx) EGO-X catback exhaust system. Its the best.
https://www.youtube.com/watch?v=aNuol5LZoaU

the ORIGINAL question was for the 2023 RS3 8Y not 8V

[bsinc42]

Anyone from the US have experience sourcing a Grail exhaust?

[xeonoex]

Finally got my AWE exhaust in. Probably wont put it on for a week or two though since I'm gonna be traveling. Excited to hear it though.

[Rguy]

After looking around forever at videos and whatnot, I went APR. These exhaust that do single exit only when valves are closed/open....would get on my nerves seeing exhaust only coming out one side in the cold. Also, some of these exhaust are VERY "slip on pipe" heavy, which seems kinda lazy to me and it wouldnt take much to get a leak in those spots. Was between AWE and APR, but went APR due to it's priced way less, and has only a few slip on pipes, and the welds look VERY well done.

[fzr100098]

The APR is quality (especially for the price) I'm happy with mine - yes it's fairly quiet with a stock setup until you get on it in sport mode (dynamic) but that's ok with me. It's designed for mods (high flow)

[Jetdriver]

After looking around forever at videos and whatnot, I went APR. These exhaust that do single exit only when valves are closed/open....would get on my nerves seeing exhaust only coming out one side in the cold. Also, some of these exhaust are VERY "slip on pipe" heavy, which seems kinda lazy to me and it wouldnt take much to get a leak in those spots. Was between AWE and APR, but went APR due to it's priced way less, and has only a few slip on pipes, and the welds look VERY well done.Good logic.. I've always felt the same way.

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[xeonoex]

I was also considering APR or AWE. I did want more of a raw sound on track, which I think AWE is the better choice for since it's closer to straight piped. It makes it easier to hear shift points, especially with other loud cars on track. I'll keep it closed on the street most likely. I wish I could hear both in person though. I did like the tone of AWE a bit more from the videos. And the weight savings.

[grandpab]

I was also considering APR or AWE. I did want more of a raw sound on track, which I think AWE is the better choice for since it's closer to straight piped. It makes it easier to hear shift points, especially with other loud cars on track. I'll keep it closed on the street most likely. I wish I could hear both in person though. I did like the tone of AWE a bit more from the videos. And the weight savings.

I'm glad I went with AWE just because of it being more of a straight piped set up. I wasn't a fan of all the clamps and slip on parts it has either, but it was the first exhaust I've installed myself and 7 months later I still have no exhaust leaks or issues with the install. I never had to get under the car a 2nd time to make any adjustments or tighten things up again.

[MerakiAutoworks]

AWE is our best seller and sounds great in my opinion!

-Josh

[RScheiss3]

This may be a dumb question and possibly already answered, but is there any reason an 8V exhaust wouldn't fit (minus the tips)?

Midpipes are direct fit, I know the rear diff is different however wheelbase is the same.. Just thinking out loud.

[fzr100098]

See post 13 below

https://www.audi-sport.net/xf/threads/433866/

[RScheiss3]

See post 13 below

https://www.audi-sport.net/xf/threads/433866/

Thanks, so actuators are different but I meant more shape/hanger placement.

[Jetdriver]

Bringing this back from the dead just because I've been shopping for exhausts and was presented with a nice BF deal. If anyone is interested in the Supersprint exhaust (Italian company), they've got 20% off right now and free shipping to the US. They're stuff is expensive, but it looks pretty high quality. I had put their exhaust in my shopping cart and got an email later on that they were offering me free shipping to the US, which is pretty generous on top of the 20% off. Still a $4,000 exhaust setup and I had to pass, but I know some love their baller exhausts. lol If you're interested, I'd email before the sale is over. I believe they told me end of today.

I'm actually going with an exhaust from HPerformance out of Germany. I have been working with their owner, Tobias Hafner, on getting one of their 3.5" cat-backs shipped over here.

https://hperformance.de/3-5-88-9mm-valved-catback-exhaust-system-RS-3-8Y-ECE-homologation/HP90MMAGA8Y

It would be nice if we had more options over here, especially with some of the nice setups they've got over in Europe. Unfortunately, with VAT and shipping, it tends to get expensive.

[9kracing]

If money isn't an issue, 485 makes a very nice exhaust for the RS3. Even nicer than Supersprint.

Valved titanium comes in a tad over 5 grand though, so eye wateringly expensive.

https://www.485designs.net/shop-online/audi-8y-rs3-exhaust-valved-non-valved

https://images.squarespace-cdn.com/content/v1/5c455454f93fd434bb1c144d/1701292637033-9U2OTNEGSL3V1O1XFH12/DSC_4312.jpg?format=2500w

[Jetdriver]

If money isn't an issue, 485 makes a very nice exhaust for the RS3. Even nicer than Supersprint.

Valved titanium comes in a tad over 5 grand though, so eye wateringly expensive.

https://www.485designs.net/shop-online/audi-8y-rs3-exhaust-valved-non-valved

https://images.squarespace-cdn.com/content/v1/5c455454f93fd434bb1c144d/1701292637033-9U2OTNEGSL3V1O1XFH12/DSC_4312.jpg?format=2500w

Yes. I looked at them extensively. Very impressive work. In fact, their downpipe is a piece of art. Titanium is baller. One day if I go with an aftermarket downpipe, I will hit them up.

What led me to the HPerformance is that, #1, I wanted something from Germany... lol #2, after talking with HPerformance, their design was ECE certified with the exhaust valves closed to meet EU standards. Why was this important to me in the US? Well, I wanted the exhaust to be stock quiet (maybe even quieter) with the valves closed. HPerformance's exhaust has two resonators as well. With the valve open, there is no Y-divergence. Almost a straight pipe with very little through the muffler. To be honest, I originally didn't like this design as it is similar to AWE's design, but I think for overall flow characteristics while in dyanamic+, I think this is the best way to go.

EDIT: BoostLogic also told me they should have their titanium exhaust out for the 8Y by the end of first quarter of 2025.

https://www.boostlogic.com/product/boost-logic-rs3-titanium-exhaust/

[mtwallace85]

https://uploads.tapatalk-cdn.com/20241203/092d635d770bc814b094232ff7c16fbb.jpg

485 can do a design like this if you want something quiet like stock with closed valves. I had an awful time dealing with HP as have many many other people so I personally wouldn’t touch their products.

[Jetdriver]

https://uploads.tapatalk-cdn.com/20241203/092d635d770bc814b094232ff7c16fbb.jpg

485 can do a design like this if you want something quiet like stock with closed valves. I had an awful time dealing with HP as have many many other people so I personally wouldn’t touch their products.

That's an interesting set up. I haven't seen that on their site. Are they making those for the 8Y as well? I'll have to email them. I had read there were some rattling issues with the stock valves and their exhausts. Any truth to that still?

[mtwallace85]

That's an interesting set up. I haven't seen that on their site. Are they making those for the 8Y as well? I'll have to email them. I had read there were some rattling issues with the stock valves and their exhausts. Any truth to that still?

I imagine you could get him to make this setup for the 8Y. I had the original design but it was too loud with the valves closed for my liking. He came up with this design this year. I had a little bit of a rattle going on with my og exhaust but Nick said it’s usually because the valve actuators were installed backwards or something I believe. He sent me a new one that’s already attached to this setup so I’m hoping this one doesn’t rattle. Either way, it wasn’t very noticeable. I heard boost logic rattles as well.

[mtwallace85]

Sorry, the previous photo was outdated. Here’s mine as I received it.

https://uploads.tapatalk-cdn.com/20241204/474b7bd97f550eea4fceebcfb2110eaf.jpg

It essentially works as a single exit exhaust and only uses 1 valve. When the valve is closed it forces the flow through 2.5” piping, a muffler, and then a small resonator before exiting the 2.5” tailpipe. When it’s open it just exits through the 3.5” tailpipe.

[Jetdriver]

Sorry, the previous photo was outdated. Here’s mine as I received it.

https://uploads.tapatalk-cdn.com/20241204/474b7bd97f550eea4fceebcfb2110eaf.jpg

It essentially works as a single exit exhaust and only uses 1 valve. When the valve is closed it forces the flow through 2.5” piping, a muffler, and then a small resonator before exiting the 2.5” tailpipe. When it’s open it just exits through the 3.5” tailpipe.

Man, so that thing has a resonated midpipe, a muffler and a small resonator after the muffler? Must be super-stealth with the valve closed. Any sound clips/vids of it?

[mtwallace85]

Man, so that thing has a resonated midpipe, a muffler and a small resonator after the muffler? Must be super-stealth with the valve closed. Any sound clips/vids of it?

Exactly. Haven’t had a chance to install it yet, hopefully this week.

[robotvoice]

Sorry, the previous photo was outdated. Here’s mine as I received it.

https://uploads.tapatalk-cdn.com/20241204/474b7bd97f550eea4fceebcfb2110eaf.jpg

It essentially works as a single exit exhaust and only uses 1 valve. When the valve is closed it forces the flow through 2.5” piping, a muffler, and then a small resonator before exiting the 2.5” tailpipe. When it’s open it just exits through the 3.5” tailpipe.

Does the OEM valve harness plug into this and then the other get capped off since there's only one valve?

[mtwallace85]

Does the OEM valve harness plug into this and then the other get capped off since there's only one valve?

That’s a very good question I haven’t asked myself; the part about capping off the one side. I should probably ask because I didn’t get a cap and not sure what’s going to happen when the car sees only 1 plugged in. As far as the OEM harness plugging into it, yes it does.

[Jetdriver]

That’s a very good question I haven’t asked myself; the part about capping off the one side. I should probably ask because I didn’t get a cap and not sure what’s going to happen when the car sees only 1 plugged in. As far as the OEM harness plugging into it, yes it does.Most of these types of designs that use one valve just have you ziptie the other one up somewhere on the other side so it doesn't throw a code.

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[Jetdriver]

If money isn't an issue, 485 makes a very nice exhaust for the RS3. Even nicer than Supersprint.

Valved titanium comes in a tad over 5 grand though, so eye wateringly expensive.

https://www.485designs.net/shop-online/audi-8y-rs3-exhaust-valved-non-valved

https://images.squarespace-cdn.com/content/v1/5c455454f93fd434bb1c144d/1701292637033-9U2OTNEGSL3V1O1XFH12/DSC_4312.jpg?format=2500w

I ended up ordering one of these from 485 Designs. Got in on their Black Friday sale for 15% off. Stainless w/valves and a midpipe resonator. They just got done fabbing it, so I should be getting it soon.

[RS3 Bacchus]

If you get the chance can you Please do a sound clip cruising in comfort? I’m ready to purchase their exhaust. Only thing holding me back is hearing how loud it is in the cabin with the valves closed. A little louder is fine but I don’t want it to be louder than stock with the valves open. I know SS is a little tamer than Ti exhausts so should be a good sound!

[Jetdriver]

If you get the chance can you Please do a sound clip cruising in comfort? I’m ready to purchase their exhaust. Only thing holding me back is hearing how loud it is in the cabin with the valves closed. A little louder is fine but I don’t want it to be louder than stock with the valves open. I know SS is a little tamer than Ti exhausts so should be a good sound!

I will. The only thing is that it may be a while before I install it once I get it. I am hoping to get it in by sometime in mid-January. Did you mean you don't want it louder than stock with the valves closed?

Nick told me that he changed the design a bit from what's on his website. It now has 2.5" piping going into the muffler when the valvss are closed vs. 3" when the valves are open. Also, he's got a Helmholtz resonator now in the midpipe, which is supposed to get rid of the drone and improve the exhaust note.

https://www.cjponyparts.com/resources/helmholtz-resonator-exhausts?srsltid=AfmBOoqeFNYwzvjvah9slBmJeJAhra9Zr-97MW4yoK8Ns27HiOtEihSD

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[9kracing]

I will. The only thing is that it may be a while before I install it once I get it. I am hoping to get it in by sometime in mid-January. Did you mean you don't want it louder than stock with the valves closed?

Nick told me that he changed the design a bit from what's on his website. It now has 2.5" piping going into the muffler when the valvss are closed vs. 3" when the valves are open. Also, he's got a Helmholtz resonator now in the midpipe, which is supposed to get rid of the drone and improve the exhaust note.

Nice!

I also ordered one for Black Friday, but I haven't heard anything from Nick.

I was hoping the ones ordered then would be the new model, that will work great for us since the girl wants it quiet and I want it loud.

Did you reach out to him, or did he contact you before he made yours?

[RS3 Bacchus]

I will. The only thing is that it may be a while before I install it once I get it. I am hoping to get it in by sometime in mid-January. Did you mean you don't want it louder than stock with the valves closed?

Nick told me that he changed the design a bit from what's on his website. It now has 2.5" piping going into the muffler when the valvss are closed vs. 3" when the valves are open. Also, he's got a Helmholtz resonator now in the midpipe, which is supposed to get rid of the drone and improve the exhaust note.

https://www.cjponyparts.com/resources/helmholtz-resonator-exhausts?srsltid=AfmBOoqeFNYwzvjvah9slBmJeJAhra9Zr-97MW4yoK8Ns27HiOtEihSD

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I did mean open. The sport mode with the valves open on the factory exhaust I find ideal for daily cruising. I find it pretty subtle and enough to hear the 5 cylinder just enough without being a nuisance. But if it was quiet that would be perfect.

I’ve seen plenty of videos with the valves open cruising and accelerating but none with the valves closed. I’m worried it’ll still be too loud

[Jetdriver]

I did mean open. The sport mode with the valves open on the factory exhaust I find ideal for daily cruising. I find it pretty subtle and enough to hear the 5 cylinder just enough without being a nuisance. But if it was quiet that would be perfect.

I’ve seen plenty of videos with the valves open cruising and accelerating but none with the valves closed. I’m worried it’ll still be too loud

I would honestly just stick with the stock exhaust if you don't want anything louder. What are you looking to gain with getting rid of the factory exhaust? Do you have a valve controller yet like the CETE or the ASR?

[Jetdriver]

Nice!

I also ordered one for Black Friday, but I haven't heard anything from Nick.

I was hoping the ones ordered then would be the new model, that will work great for us since the girl wants it quiet and I want it loud.

Did you reach out to him, or did he contact you before he made yours?

I reached out to him a few days ago. He had said they were just finishing mine. I ordered on the last day of the sale. The 8th maybe? Before I ordered, I had exchanged a few emails about his design and he said, "I have recently changed the closed valve routing to be 2.5" like this one, along with an updated mid pipe featuring a Helmholtz resonator, in addition to the regular resonator." so I assume all newly built valved exhausts will be like this. He makes these per order, so these exhausts are literally custom made.

[RS3 Bacchus]

I would honestly just stick with the stock exhaust if you don't want anything louder. What are you looking to gain with getting rid of the factory exhaust? Do you have a valve controller yet like the CETE or the ASR?

I want something louder to open up the 5 cylinder sound with the valves open. I have the ASR valve controller but cruising around, it still feels really quiet to me.

My bigger concern is the sound volume with the valves closed. During comfort, while my wife drives the car, I’d like to prefer the sound close to stock. Even slightly louder would be fine.
I’m more worried about too much cabin volume in comfort with an after market.

I was going to get the APR catback but I heard it in person, and for the money, I felt like there really wasn’t really much of a difference in sound volume.

[Jetdriver]

I want something louder to open up the 5 cylinder sound with the valves open. I have the ASR valve controller but cruising around, it still feels really quiet to me.

My bigger concern is the sound volume with the valves closed. During comfort, while my wife drives the car, I’d like to prefer the sound close to stock. Even slightly louder would be fine.
I’m more worried about too much cabin volume in comfort with an after market.

I was going to get the APR catback but I heard it in person, and for the money, I felt like there really wasn’t really much of a difference in sound volume.

Ok, so you want stock volume level with valves closed (or maybe slightly louder) and louder with valves open. Gotcha. I was confused before.

[StrongOnline007]

Ok, so you want stock volume level with valves closed (or maybe slightly louder) and louder with valves open. Gotcha. I was confused before.

Haven’t heard it in person, but from what I’ve seen online the Grail would be a good fit? That’s what I’ll get if I ever do an exhaust. Curious if anyone here has it and what they think

[Jetdriver]

Haven’t heard it in person, but from what I’ve seen online the Grail would be a good fit? That’s what I’ll get if I ever do an exhaust. Curious if anyone here has it and what they think

Does sound sweet on Youtube.

https://www.youtube.com/watch?v=IkZX2AQ4VAg

https://www.youtube.com/watch?v=esnAQqCMp9g

I thought I had an order lined up with HPerformance out of Germany during their Black Friday deal and they ended up ghosting me after I gave them my address to estimate shipping. Not sure why, but sent me looking more at 485's product and I figured I'd rather give my $3k to a U.S. company making custom stuff.

[IanCH]

Those 485 design exhausts are works of art. Totally fair price for such an awesome piece.

[Jetdriver]

Those 485 design exhausts are works of art. Totally fair price for such an awesome piece.

I agree. There are exhausts out there that cost just about the same price that aren't made to order. With the 15% BF deal, it was a no-brainer. Wish I could swing the titanium version, but it was a bit too rich for my blood. I'm sure the stainless version is lighter than the factory system anyway. To be honest, I don't know if my exhaust will come with a Helmholtz resonator or not. His blog makes it sound like it may be an option in the future, but an email from him made it sound like it was standard. I wasn't able to select it when I ordered mine, so who knows?

His downpipe looks sweet as well.

https://images.squarespace-cdn.com/content/v1/5c455454f93fd434bb1c144d/1700864326265-RRAF37W1IPD22YS20VQ1/DSC_5148.jpg?format=2500w

Looks like a version 2 for the 8V is out as well:

https://images.squarespace-cdn.com/content/v1/5c455454f93fd434bb1c144d/ec12b7d5-956e-4bd4-84a1-b8edb9f50c4b/website-homepage.jpg?format=1500w



Recent info posted to their blog: https://www.485designs.net/blog/2024/8/11/first-blog-post-introduction-8yrs3-exhaust-wr574

Valved closed routing - The closed valve routing has been changed from 3” to 2.5” and paired with a longer muffler. This combo will improve the level of sound when the valves are open vs closed. When the valves are closed, the exhaust is forced through 2.5” routing and the longer muffler, vs prior we had 3” closed routing and a bit shorter of a muffler. This does not reduce flow, as when the valves are open, priority pathway of flow is 3”.

Helmholtz resonator - This is not yet pictured as we’re still introducing this, but a huge addition to our exhausts. Everybody is different in terms of sound. You could send one person a straight piped exhaust for these cars and they’ll love it, send it to someone else and they’ll hate it. Same with the “drone factor”. I tend to think that all cars running an aftermarket exhaust other than a factory system will end up with some form of drone and everybody’s definition varies. The helmholtz resonator is specifically designed in length, tubing size, and placement. The end product eliminates cabin noise. This will be an option for those who want to add it, or not. Pictures of this will be added soon, once we’ve confirmed the best variation of sizing.

Success. . . VALVES!
Exhaust valves have got to be the biggest challenge when integrating into the exhausts. At first, they seem so simple, then they have a mind of their own. The main issue when utilizing the factory servo on an aftermarket valve body is the spring. The OEM spring is great. Works perfect, as on the factory exhaust. Recently we went through a ton of troubleshooting as I was bending springs to send out with a normal order. The exhaust valves would not stop clicking! I come to realize the clocking of the servo wasn’t as it was from when it would come off a factory exhaust. They self adjusted to the wrong position, resulting in sleep loss. The fix was resetting servos on the factory exhaust, literally forcing them on and cycling the car through open/closed modes. Little did I know they will self adjust. This way we can now fit springs to our exhaust accurately again. I haven’t experienced this ever through making numerous of these now. This leads me to another new feature for the 8V that we are going to be utilizing along with the 8Y. OEM spring functionality will be added to our 8V exhausts soon, but for now, we’ve figured out the absolute best way to send you springs that will make your servos not click and not rattle in either open or closed position.

8Y OEM valve servos
We’ve been building 8Y RS3 exhausts for a little over a year now and with every single order prior to now, we used an aftermarket valve controller, and valve delete plugs. This was pain, obviously, and did not integrate with the factory functionality when changing modes to open/close the valves, which kind of sucks when buying an expensive car, you want it to work nice.. right? That was the only way we could do it though. Now, we finally designed brackets to use on our exhaust bodies and they work! This is huge for us. Pictured below is our valve body with an oem servo bolted up. These are fabricated precisely and everything was specifically designed to accommodate proper spacing and spring compression etc. We’re super happy to announce this. A big thank you to one of our local customers Andrew, who patiently waited a long time for us to design this and let us install it on his vehicle!

https://images.squarespace-cdn.com/content/v1/5c455454f93fd434bb1c144d/4f7494c9-b7c9-4d20-9e0f-6a4e2c8d6df2/Audi+8Y+RS3+Exhaust+valve?format=1500w

[Jetdriver]

By the way, Valvetronic, out of Boyertown, PA, is looking to test an exhaust on an 8Y. They have sold an exhaust for the TTRS for a while:

https://valvetronic.com/products/audi-ttrs-rs3-valved-exhaust

I met the owner at a car meet out in PA a few months ago. I was supposed to go out and let him use my car as a testbed, but I had some stuff come up and couldn't get out there. He's almost 2 hrs from me and needs my car for 2-3 days (was going to end up dropping it there for a week). I may still do it, but already ordered and plan on running the 485 Designs exhaust. Anyone in PA?

[IanCH]

Valvetronic makes all their exhaust in China and imports them (and marks them up). Just FYI

[Jetdriver]

Valvetronic makes all their exhaust in China and imports them (and marks them up). Just FYI

Yep. I knew that. That's why I went with 485. :) but, whoever does go there and donates their 8Y will get a pretty good discount on a titanium exhaust. May be worth it to someone. I'd go out there, but I wouldn't be keeping the exhaust.

They do make their higher end stuff for the Lambos and Ferraris in-house, but that stuff is $6,000-9,000.

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[9kracing]

I reached out to him a few days ago. He had said they were just finishing mine. I ordered on the last day of the sale. The 8th maybe? Before I ordered, I had exchanged a few emails about his design and he said, "I have recently changed the closed valve routing to be 2.5" like this one, along with an updated mid pipe featuring a Helmholtz resonator, in addition to the regular resonator." so I assume all newly built valved exhausts will be like this. He makes these per order, so these exhausts are literally custom made.


Did you get your exhaust yet?

[Jetdriver]

Did you get your exhaust yet?

Nope. Funny, because about a week after I ordered, I got buyer's remorse and emailed to cancel the order thinking they hadn't started it yet. They told me they were finishing it up and couldn't cancel the order. That was almost 3 weeks ago. I would think if they were finishing my exhaust, it'd be here by now, but who knows? I am not in the big rush for it.

[9kracing]

Nope. Funny, because about a week after I ordered, I got buyer's remorse and emailed to cancel the order thinking they hadn't started it yet. They told me they were finishing it up and couldn't cancel the order. That was almost 3 weeks ago. I would think if they were finishing my exhaust, it'd be here by now, but who knows? I am not in the big rush for it.


After your post I reached out and Nick, and he said he'd send me pics of mine soon, and that was the last I heard.

I ordered a day or two before you.

I'm sure he's probably making multiple sets at once, I guess they'll probably be done around the same time.

[Jetdriver]

Looks like 485 posted some pics of their new design on IG. I am assuming ours will be like this 9k. Top quality stuff. You'd be hard-pressed to find a made-to-order, custom US-based exhaust for less than these, especially with the Black Friday deal we got.

[9kracing]

.... what's going on here??

https://www.audizine.com/forum/attachment.php?attachmentid=335492&d=1736611253



Also I was expecting it to be like this design .... 2.5" going through a muffler, and the other side straight through.

https://images.squarespace-cdn.com/content/v1/5c455454f93fd434bb1c144d/ec12b7d5-956e-4bd4-84a1-b8edb9f50c4b/website-homepage.jpg?format=1500w

What you posted is basically the same design he had before.

[IanCH]

Hemholtz resonator to defeat a specific resonant frequency

The sign of an actual intentionally designed exhaust that doesn't suck.

[NapalmEnema]

The Provacateur is 3500 from Austria - it sounds so good if I'm going to spend that kind of money I think I'd go that route.

https://provocateur-exhaust.com/

Sounds so damn good.

[brobst]

I ordered the 485 SS exhaust for my 8v in December as well. Nick said the helmholtz was included now. That pipe in the photo above is it. Awesome. I am looking forward to this product.


Sent from my SM-S901U using Tapatalk

[Jetdriver]

The Provacateur is 3500 from Austria - it sounds so good if I'm going to spend that kind of money I think I'd go that route.

https://provocateur-exhaust.com/

Sounds so damn good.

It does sound good. The problem with the stuff made overseas is by the time you pay VAT and shipping, I am sure it's up over $4k easy.

[Jetdriver]

.... what's going on here??

https://www.audizine.com/forum/attachment.php?attachmentid=335492&d=1736611253



Also I was expecting it to be like this design .... 2.5" going through a muffler, and the other side straight through.

https://images.squarespace-cdn.com/content/v1/5c455454f93fd434bb1c144d/ec12b7d5-956e-4bd4-84a1-b8edb9f50c4b/website-homepage.jpg?format=1500w

What you posted is basically the same design he had before.

Yeah, he does have a lot of different designs he's come up with on the sight. Kind of hard to tell which is the current and which isn't, but I do like this angled muffler design. Seems to be better for flow and the Helmholtz resonator is an awesome addition. From their IG post: "Excited to share some of our most recent updates! You’ll notice the additional tube in the mid pipe, the Helmholtz resonator, paired with the regular resonator. Helps a ton with cabin noise and also changed the tone a tad. Also featuring, longer mufflers in the rear / 2.5” closed routing. A few other bits are the added slip in mid/general refinement. Top notch quality. We’re focusing heavily on the 8Y/V exhausts to drop lead times. Some other new goodies are coming soon as well."

[NapalmEnema]

It does sound good. The problem with the stuff made overseas is by the time you pay VAT and shipping, I am sure it's up over $4k easy.

Dead on! $4100 to the door. That's what I was quoted when I reached out to them.

[IanCH]

Us buyers don't pay VAT on things bought from europe.

[Crowlski]

Someone tell me I'm wrong. But this looks a bit wonky. Lots of bends and pipe flow. Wouldn't you want less plumbing to reduce restriction?

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[9kracing]

Someone tell me I'm wrong. But this looks a bit wonky. Lots of bends and pipe flow. Wouldn't you want less plumbing to reduce restriction?

Here's a post from 2004 by Bisimoto, on why his headers have the bends they do.

https://2.bp.blogspot.com/-5S2I6FjHdB8/TwUcgloZWyI/AAAAAAAAAFg/ymCF_WGMdjc/s1600/justins_header_07.jpg

"Greetings all,
I was notified of this post, and quite suprised at some of the comments generated.

The rationale for the bends on my designed header is a follows:

I noticed a given area beneath our vehicles that can assist with the scavaging effects of the header. This was realized with manometer/ pressure differential tests done on my crx, and 2 other civics.

I was pressed to design a unit that could terminate at this area for obvious reasons. I also had the additional challange of an ideal length of header piping to allow optimum exhaust pulse tuning, which was dependant on RPM range, displacement, etc.

My experimentation with fluid dynamic concepts of "flow in pipes" proves that you can achieve the same flowrate and fluid friction in a given stright pipe in one of specified bends if sized properly. In simple terms, a smaller stright pipe flows the same (and experiences the same friction losses) as a calculated "bent" one of larger diameter. There is plenty of scientific documentation on this subject as well.

Hence, this concept is one I use on my own race car to generate ideal HP and torque numbers, with a very simplistic setup: simple carbs, a SOHC, and ignition!

As for the F1 analogy, yes, clearance/aero package may be the reason, but I had compartment constraints as well. In regard to underhood temperatures, I always suggest ceramic coatings...just like on my vehicle.

I am not a businessman trying to sell headers. I am an engineer, scientist, and racer who desires to bring great technology to the masses...at a decent price."

[Crowlski]

Here's a post from 2004 by Bisimoto, on why his headers have the bends they do.

https://2.bp.blogspot.com/-5S2I6FjHdB8/TwUcgloZWyI/AAAAAAAAAFg/ymCF_WGMdjc/s1600/justins_header_07.jpg

"Greetings all,
I was notified of this post, and quite suprised at some of the comments generated.

The rationale for the bends on my designed header is a follows:

I noticed a given area beneath our vehicles that can assist with the scavaging effects of the header. This was realized with manometer/ pressure differential tests done on my crx, and 2 other civics.

I was pressed to design a unit that could terminate at this area for obvious reasons. I also had the additional challange of an ideal length of header piping to allow optimum exhaust pulse tuning, which was dependant on RPM range, displacement, etc.

My experimentation with fluid dynamic concepts of "flow in pipes" proves that you can achieve the same flowrate and fluid friction in a given stright pipe in one of specified bends if sized properly. In simple terms, a smaller stright pipe flows the same (and experiences the same friction losses) as a calculated "bent" one of larger diameter. There is plenty of scientific documentation on this subject as well.

Hence, this concept is one I use on my own race car to generate ideal HP and torque numbers, with a very simplistic setup: simple carbs, a SOHC, and ignition!

As for the F1 analogy, yes, clearance/aero package may be the reason, but I had compartment constraints as well. In regard to underhood temperatures, I always suggest ceramic coatings...just like on my vehicle.

I am not a businessman trying to sell headers. I am an engineer, scientist, and racer who desires to bring great technology to the masses...at a decent price."Totally get why headers are bent the way they are. Just the catback system seemed to have a few too many bends. But hey I'm not the designer so if they can show a positive scavenging of exhaust gasses and a positive vacuum then who am I to question. Thanks for that tho.

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[Jetdriver]

Has anyone who ordered a 485 exhaust during their Black Friday sale actually gotten their exhaust yet?

[JustinP142]

Has anyone who ordered a 485 exhaust during their Black Friday sale actually gotten their exhaust yet?

Lol. Yeah their production times are a little insane. Took a while for me to get my exhaust. I did see the owner post a handful of RS3 rear sections last night so I'm sure you're coming up soon.

[Jetdriver]

Lol. Yeah their production times are a little insane. Took a while for me to get my exhaust. I did see the owner post a handful of RS3 rear sections last night so I'm sure you're coming up soon.

Ok, cool. I'll have to check it out. On IG, I assume? I'm just a little perplexed because a week or so after I placed my order late Nov/early Dec, I emailed them to cancel the order. I found out one of my kids needed braces, so I was like maybe I shouldn't drop $3,500 on an exhaust right now... lol So I emailed Nick to cancel (they actually have a no-cancel policy, which I didn't realize when I emailed him) and he told me that they had already started production on my exhaust. I said, Ok, nvm, no problem. Here we are in early Feb... lol I'll keep waiting. Not in a big rush to put it on anyway. Maybe they send them all out in bulk for some sort of shipping discount. Who knows?

[brobst]

I figured 8 weeks was the norm. I'm at week 5. But then there was Christmas and such. Prolly get it march 1st ish

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[9kracing]

FWIW I was just talking to Nick about something else for a different a car, but he had this to say about our 8Y orders...

"As far as the 8Y order goes, I'll get over some pics. We knocked out a bunch this week and I will have yours shipped very soon. "


I think we'll see them sooner than later.

[Jetdriver]

Got an email tonight from Nick confirming my address and said that they're just wrapping up the 8Y exhausts, so we must be getting close. He said he'd send some pics soon.

[Jetdriver]

Here's a good (and recent) vid for a TTRS 485-Designs install. Not exactly the same design as their 8Y model, but gives you a good view of the quality. The sound level is with Unitronic midpipes, so I think this car is pretty darn loud.

https://youtu.be/dv09i0FFuiE?si=SVZvm_05x6LTEv-I

[RS3 Bacchus]

Here's a good (and recent) vid for a TTRS 485-Designs install. Not exactly the same design as their 8Y model, but gives you a good view of the quality. The sound level is with Unitronic midpipes, so I think this car is pretty darn loud.

https://youtu.be/dv09i0FFuiE?si=SVZvm_05x6LTEv-I

This is actually pretty much exactly what I was looking for. Interior video with sound driving normally with the valves closed. It seems louder than I expected but I anticipate it being quieter with 8y RS3, especially with their new resonator design. I’m thinking I might just pull the trigger and get it

[Jetdriver]

This is actually pretty much exactly what I was looking for. Interior video with sound driving normally with the valves closed. It seems louder than I expected but I anticipate it being quieter with 8y RS3, especially with their new resonator design. I’m thinking I might just pull the trigger and get itRemember, that car has midpipes. Midpipes make the exhaust significantly louder.

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[robotvoice]

Remember, that car has midpipes. Midpipes make the exhaust significantly louder.

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Midpipes add a little more sound and change the tone up a little but I wouldn't say it's "significant" by any means.

[brobst]

Its closer to 30% volume increase.

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[Jetdriver]

Its closer to 30% volume increase.

Sent from my SM-S901U using TapatalkI'd say that is significant, but that's just me.

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[Jetdriver]

FWIW to anyone who ordered a 485 Designs exhaust, Nick told me mine should be shipping out next week. I ordered the first week of December.

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[smf4444]

is there any reason to not install and drive with a catless dp without a tune while waiting

[djn876]

is there any reason to not install and drive with a catless dp without a tune while waitingThe waste gate noise will probably be horrible.

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[RS3 Bacchus]

Anyone have updates on their 485?

[Jetdriver]

Anyone have updates on their 485?Did you see my post three posts above?

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[9kracing]

I just checked an apparently I ordered Dec 6th, so I assume I'll see tracking next week as well.

[brobst]

I figured they were making sure the helmholtz resonator and valve rattles are all squared away.
Plus they probably received a fair amount of orders during the sale.

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[RS3 Bacchus]

[QUOTE=Jetdriver;15146001]Did you see my post three posts above?

That’s my bad I read the date completely wrong hahaha

[Jetdriver]

Got a call from Nick at 485 Designs yesterday. My exhaust should be getting shipped this week. Anyone else get a call from him?

[9kracing]

Yeah I talked to him yesterday as well

[9kracing]

A week later and no tracking number :\

[200Audi]

Anyone have updates on their 485?

Hello, I’ve had my 485 exhaust for a year (my car is on the 485 website)

Here are the details:

Setup: straight midpipes, titanium exhaust and I went with the valves option.

Pros: looks and sound amazing, love the higher rev sound

Cons: 2-3k rpms will have drone, most of the time is reasonable but there are days that I need to downshift because is too much (so far is rare to have those days tho) the main issue is that the 2-3k rpm is the cruise speed… so will your SO complain about the noice, absolutely, is it worth it? Yeah

Here are some videos
https://imgur.com/a/JqMOdCR


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[Jetdriver]

A week later and no tracking number :\LOL... Me neither. It is a good thing I wasn't in a big rush for mine.

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[Jetdriver]

Hello, I’ve had my 485 exhaust for a year (my car is on the 485 website)

Here are the details:

Setup: straight midpipes, titanium exhaust and I went with the valves option.

Pros: looks and sound amazing, love the higher rev sound

Cons: 2-3k rpms will have drone, most of the time is reasonable but there are days that I need to downshift because is too much (so far is rare to have those days tho) the main issue is that the 2-3k rpm is the cruise speed… so will your SO complain about the noice, absolutely, is it worth it? Yeah

Here are some videos
https://imgur.com/a/JqMOdCR


Sent from my iPhone using TapatalkThanks for the review. I believe Nick has changed the design since you got yours. It now features a Helmoltz and now has 2.5" piping for the valved sections, which should get rid of some drone. I went with the stainless model.

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[Jetdriver]

A week later and no tracking number :\Speak of the devil. I got my shipment notification this afternoon.

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[brobst]

Same shipping notifications today. Stainless and valved plus resonated. Excited!!

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[Jetdriver]

Same shipping notifications today. Stainless and valved plus resonated. Excited!!

Sent from my SM-S901U using TapatalkDid yours actually ship? I got a shipping notification, but nothing ever shipped.

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[brobst]

Did yours actually ship? I got a shipping notification, but nothing ever shipped.

Sent from my SM-F721U using Audizine Forum mobile app (https://r.tapatalk.com/byo?rid=87676)He emailed me, but no shipping actual yet. Just a number.

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[9kracing]

Another week and still just "label created"

[brobst]

Another week and still just "label created"Yeah I know. I didn't plan to install it until May so I have some time at least to arrive.
Just treat it as a pleasant surprise when it does.

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[meatoverrice]

This thread just convinced me to avoid the headache and order AWE Switchpath

[Jetdriver]

LOL. Not impressed with AWE's exhaust for the price you pay. $2,685 right now, on sale and you're basically just getting mandrel bent piping and a small muffler. I paid $3,243.69 for the 485 Designs exhaust with their Black Friday sale for more piping, two mufflers, and two resonators (one Helmholtz) - granted, it's vaporware right now. A lot of people complain the AWE is too loud and has too much drone. I realize the wait time on a 485 Designs in ridiculous. I'm trying to be understanding that they are a small custom shop and I assume these RS3 exhausts are just something Nick kind of does on the side. Looks like they mainly do motorcycle stuff. Their work looks top notch. If I had been in a rush to get this thing, I'd probably be a bit pissed right now. We're well beyond the 8-12 weeks. If it wasn't the 485 exhausts, I'd have probably gone with a Remus exhaust that'd have to come from EU and had been more money.

[Jetdriver]

Looks like it shipped. It arrives next Wed.

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[audios3]

This thread just convinced me to avoid the headache and order AWE Switchpath

I have the track and fucking love it, but my car also exists purely for my enjoyment, worked from home for years i'll rock the sq5 if i need to go somewhere. Track edition is loud and drones if you are lugging the engine but when you are enjoying the car nothing sounds better imo.

[brobst]

Its on the way!!

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[RS3 Bacchus]

I completely agree with the AWE. That was going to be my original purchase until I heard it in person and really didn’t like it in the end. No I am skeptical about order an exhaust until I can at least hear or know how it sounds with the valves closed.

I don’t mind a little drone but the AWE even with the valves closed was pretty bad.

With the Valves open, let it rip and have some fun.

I’m excited to hear the feedback from the two getting their 485, if the feedback come back good I’ll order it that day!

[brobst]

End of may, I'll have it installed and I will give my review. I have done the awe track and awe switchpath so I know them for a reference.

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[meatoverrice]

I feel like this is the first time I'm even seeing mentions of drone with AWE switchpath.

[Me_in_NY]

I feel like this is the first time I'm even seeing mentions of drone with AWE switchpath.

That was my thought when I read that. I assume the car had non resonated midpipes installed as well which would add drone to the switchpath. I started with AWE track and stock mid pipe and it was just obnoxious. Bought the switch path kit and only installed the resonator leaving the other side open all the time and it’s perfect for me now.

[meatoverrice]

That was my thought when I read that. I assume the car had non resonated midpipes installed as well which would add drone to the switchpath. I started with AWE track and stock mid pipe and it was just obnoxious. Bought the switch path kit and only installed the resonator leaving the other side open all the time and it’s perfect for me now.

Thank you for providing an owner's perspective. If I'm understanding you correctly, the switchpath kit comes with a resonator as well as the muffler and you only installed the resonator?

[Me_in_NY]

The switchpath comes with a resonator on driver side and a valve on passenger side. Being I had the track already all I did was install the resonator and left the passenger side straight pipe. I still have the stock midpipes installed so no annoying drone.

[brobst]

I've had awe with other vehicles and its been great. They have upstream resonators before the valved pathways.
The 8v exhaust they redesigned it so sound altered only on one side. Just ended up not as effective as I thought it would be. I still think its a great company and exhaust, just wasn't a fan on this particular vehicle design

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[9kracing]

If anyone wants an AWE for the 8Y I'm selling one for cheap

[EAFLO88]

If anyone wants an AWE for the 8Y I'm selling one for cheap

Message sent


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[9kracing]

485 Exhaust got delivered today, I'll open the box and take some pics after work

[Jetdriver]

I got my 485 exhaust yesterday. Came well packaged in two separate boxes. I didn't unwrap the whole thing as it's going to be a while before I get this thing on the car. I have a bent wheel and F'd up PZero from a pot hole so my car is down for a while until I figure out what I want to do. I was going to drop some coin on a set of BBS wheels, but I just found out I owe $25k in taxes last year that I wasn't quite expecting, sooooo.... luckily my WRX still runs. Anyway.... quality looks top notch, but... where's the Helmholtz resonator I thought we were getting? Mine doesn't have one. Oh well.

337582337583337584337585337586

[brobst]

I got my 485 exhaust yesterday. Came well packaged in two separate boxes. I didn't unwrap the whole thing as it's going to be a while before I get this thing on the car. I have a bent wheel and F'd up PZero from a pot hole so my car is down for a while until I figure out what I want to do. I was going to drop some coin on a set of BBS wheels, but I just found out I owe $25k in taxes last year that I wasn't quite expecting, sooooo.... luckily my WRX still runs. Anyway.... quality looks top notch, but... where's the Helmholtz resonator I thought we were getting? Mine doesn't have one. Oh well.

3375823375833375843375853375868v or 8y system you got?

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[Jetdriver]

8v or 8y system you got?

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8Y.

[9kracing]

where's the Helmholtz resonator I thought we were getting? Mine doesn't have one. Oh well.


Oh well?

I'm going to be irritated if that's the case, after waiting patiently for 5+ months. I was told it would be included.

Not to mention I only got one box with 2 pipes in it... supposedly the other box with the bulk of the parts is showing up today.

[Jetdriver]

Oh well?

I'm going to be irritated if that's the case, after waiting patiently for 5+ months. I was told it would be included.

Not to mention I only got one box with 2 pipes in it... supposedly the other box with the bulk of the parts is showing up today.

Yeah, I don't know man. I technically ordered mine before the design "changed" and pics started to surface of the Helmholtz. Their website still doesn't show a new design. My muffler section does appear to have 2.5" piping on the valved section and 3" on the straight through "loud" section as described. Again, I tried to cancel my order early on in the process about a week to a week and a half after I ordered and was told they started fabbing my exhaust... that was early December and I just got mine last week. LOL Technically, I got what was represented on their site when I ordered. Can't say I'd have a leg to stand on to bitch I didn't get a Helmholtz on mine if it were a mid-cycle change to their design. I am sure it adds costs that I didn't pay for.

[9kracing]

I talked to Nick on the phone in December and was told our exhausts would have the new changes. I'll give him a call later today.

[brobst]

My 8v one is being delivered today. I'll see what is in the box. He did mention the resonator and I thought it was in the blog on their website. Maybe 8v was done before 8y ones?

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[IanCH]

I got my 485 exhaust yesterday. Came well packaged in two separate boxes. I didn't unwrap the whole thing as it's going to be a while before I get this thing on the car. I have a bent wheel and F'd up PZero from a pot hole so my car is down for a while until I figure out what I want to do. I was going to drop some coin on a set of BBS wheels, but I just found out I owe $25k in taxes last year that I wasn't quite expecting, sooooo.... luckily my WRX still runs. Anyway.... quality looks top notch, but... where's the Helmholtz resonator I thought we were getting? Mine doesn't have one. Oh well.


Construction looks wonderful, hope it sounds as good as it looks!

I've been there with the unexpected $25k IRS shots, sucks ass but wishing you the best to get through it.

[Jetdriver]

Construction looks wonderful, hope it sounds as good as it looks!

I've been there with the unexpected $25k IRS shots, sucks ass but wishing you the best to get through it.Thanks!

Yeah, sucks. 1st world problems, I guess.

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[AdamSheikh]

I have a bent wheel and F'd up PZero from a pot hole so my car is down for a while until I figure out what I want to do.

Ouch. You too, huh? I bent a front wheel and blew a tire on my last day at Wookies. Was an ordeal finding a 265 tire in the middle of nowhere (and a shop on a Sunday to mount it) and driving home 800 miles with a vibration lol, but we made it. Sorry to hear man. I did source a new wheel from Audi Rockville - they have a 25% off promo for online parts orders as a heads up. Planning to repair the bent one and keep as a spare.

Sorry for the tangent. Exhaust looks killer! Excited to hear it when it's on.

[Tactical_ted]

Ouch. You too, huh? I bent a front wheel and blew a tire on my last day at Wookies. Was an ordeal finding a 265 tire in the middle of nowhere (and a shop on a Sunday to mount it) and driving home 800 miles with a vibration lol, but we made it. Sorry to hear man. I did source a new wheel from Audi Rockville - they have a 25% off promo for online parts orders as a heads up. Planning to repair the bent one and keep as a spare.

Sorry for the tangent. Exhaust looks killer! Excited to hear it when it's on.



If it makes you feel better I destroyed a wheel, and a tire in the first 4 miles (First Drive) of my 24 8Y. LOL