B9 S5 Sportback - Center Resonator Delete - Thoughts

[DarthVader711]

Coming from a B8 S4 with a AWE Touring exhaust, it definitely crossed my mind to pick up another AWE exhaust (switch path this time) for my B9 S5 SB. But after very little consideration and waking up one day feeling spontaneous, I decided to go to my local muffler/ exhaust shop "Exhaust Works" and do a center resonator delete. These are my thoughts:

It really doesn't do much in regards to making the car louder, its actually not that noticeable in the exterior IMO. What you do notice is a dramatic increase in droning, more specifically, in the 2-3.5K RPM range (anything over and under its not that noticeable). Unfortunately, the power band of this car is designed to utilize the low end torque, so theres droning all the time in City driving (unless you live that life #YOLO). The programmed backfire also known as the "pops and crackles" is way more pronounced and is quite addictive if you ask me. I see myself constantly giving the right petal 10% throttle and thing instantly letting off, just so i can hear the pops and crackle. The upshifts and downshifts are also amplified and the infamous 2 - 3 50% throttle "blappp" is definitely one of the better attributes of this modification.

I recently completed a 220 mile road trip and i have to admit, the drone at 75-80MPH on the interstate is little more than i would like.

So right now, you might be wondering, well does dynamic and comfort mode make a difference? The answer is YES, but tbh, under load in the freeway, even in comfort mode, the drone was above what i could tolerate for longer durations (over 1 - 2 hours). This is a great modification if you don't mind a mild drone and does not want to spend $2-3K on a exhaust. This modification cost me $120 out the door and I will probably keep it until AWE lowers their pricing on the B9 platform :).

Thanks!

Heres a video of the car revving with a warmed up 180- 190F engine temp, in dynamic mode. https://www.youtube.com/watch?v=NIGj9MXrev4

[tinman143]

Nice of you to share this project for the community. I was thinking of doing this for my A5 SB but I’m glad I held off. Maybe I’ll just do the 034 intake box replacement for a lil more turbo noise. Or maybe do nothing at all!


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[Diokhan]

Because I really can't justify spending $2-3K on an exhaust just to make the car a little louder, I was thinking about this for my B9 S4. The pops and crackles, and the blapp are two things I would love more of, but not the drone. When you did this, is it two straight pipes in there, or did you install and x-pipe as well? I wonder if that would help with drone? Maybe not?

I've only been able to find one other res delete video on this platform and no reviews, so thanks for your write up and thoughts! Not sure I want to move forward with this now, so maybe I'll keep it as is too. You mention that you'll probably keep the change, but if you had to do it over again, would you?

[DarthVader711]

If I had the chance to do it over again, I would probably still do it purely because I work 2 miles from work, so the additional noise is bearable. But if i had to commute over 20 - 30 minutes a day to work, i would probably reconsider. I have attached some photos below of the install. I wonder if removing the resonators in the front would create less drone?

HERE IS THE BEFORE: https://photos.app.goo.gl/jSuDNu5BHv19JDNE7

HERE IS THE AFTER: https://photos.app.goo.gl/hTk3V4JaDBwoz4Ny6

[WillieFlo]

If I had the chance to do it over again, I would probably still do it purely because I work 2 miles from work, so the additional noise is bearable. But if i had to commute over 20 - 30 minutes a day to work, i would probably reconsider. I have attached some photos below of the install. I wonder if removing the resonators in the front would create less drone?

HERE IS THE BEFORE: https://photos.app.goo.gl/jSuDNu5BHv19JDNE7

HERE IS THE AFTER: https://photos.app.goo.gl/hTk3V4JaDBwoz4Ny6

Darth Vader711,
Have you thought of addressing the drone by adding a Magnaflow straight-through type muffler or an X-pipe in where the center resonator used to be?

If you were to remove the front resonators, I would think that may compound your issue instead of help.

[Diokhan]

I'm wondering that too. I have both the x-pipe and resonated x-pipe saved in my amazon cart. I really don't want to be a guinea pig on this, so I'm really hoping Mr. Vader (or someone) gives either a try first.

[F80Dreamer]

Thanks for sharing, I’m going to hold off on this mod for now. I have a long commute, plus i hate drone :)

[DarthVader711]

I'm wondering that too. I have both the x-pipe and resonated x-pipe saved in my amazon cart. I really don't want to be a guinea pig on this, so I'm really hoping Mr. Vader (or someone) gives either a try first.

I am thinking about it actually :). I'm looking at the AWE exhaust and notice it's basically a straight pipe and has less drone. I wonder how they are able to achieve this with no Resonator.

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[Diokhan]

They may be able to achieve it with an x-pipe?

[jonpark]

https://redirect.viglink.com/?format...enter%20X-Pipe

[m-ys4]

But there is no confirmation that this fits the S5, or is it an identical system?

Has anyone thought of removing the rear mufflers and keeping the center resonators?

[DarthVader711]

But there is no confirmation that this fits the S5, or is it an identical system?

Has anyone thought of removing the rear mufflers and keeping the center resonators?

Nope but I'm thinking of removing all the resonators and leaving just the mufflers .

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[m-ys4]

Nope but I'm thinking of removing all the resonators and leaving just the mufflers .

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But wouldn't keeping the resonators in place, remove the drone? That's the one thing I cant stand with res deletes... droooooneeeeeee!

[beautyview]

I hope some one from vendors can verify difference between B9 S4 and B9 S5 Sportback exhaust.

AWE, TAG, APR somebody~~!!!

[wam22]

The B9 S5 and S4 are different lengths. I bought a lightly used AWE S4 track exhaust and I had to buy a new S5 x-pipe from AWE since the S4 x-pipe was too short.

[rice_Rocket88]

It's been a long time since I've hit the Audi forums.. but trying to gather a teeny bit of information for a friend. Has anyone just gotten rid of the mufflers for straight sections? I can't seem to see if there is a bolt on replacement, have only looked at the AWE setups which look like from the axle back the mufflers are bolted on. Google search has been zero hits for muffler deletes, only resonator and full exhaust switches.

[Yoshimura]

It really doesn't do much in regards to making the car louder, its actually not that noticeable in the exterior IMO. What you do notice is a dramatic increase in droning

So what is the purpose of this mod!?!?!?

[tinman143]

So what is the purpose of this mod!?!?!?

The hope for more sound at a fraction of the cost of a complete exhaust system.


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