Front brake pad options?

**romanster** · 01-16-2023 03:17 PM

Hi all, I purchased the 10-piston Akebono front brake kit with 420mm iron rotors, going onto my Volvo V90. It’s the same setup as the non-carbon-ceramic C8 RS6 & RS7. The kit comes with its own semi-metallic brake pads, but I’m planning for replacement options.

Are there any replacement ceramic pads available for the iron brakes? Found another post from 2021 that said no options were out yet.
The oem Audi pads with their obscene price tag are the typical dusty semi-metallic type. I see Dynamic Friction has pads in their 3000 semi metallic and 5000 “advanced low metallic” but I haven’t found a ceramic type pad, like available for all other applications.

What are the C8 RS6/7 owners with iron brakes doing for pad jobs when it’s time? Just let the dealer throw on oem pads?

**carguyshu** · 01-16-2023 08:29 PM

There’s still no aftermarket. I have a request in with Gloc to see if they can make something.

**F10TT** · 01-17-2023 06:23 AM

Last year I had Hawk and EBC both tell me we'd see something from them by the end of 2022. Still waiting. I'll need pads and rotors by early Summer so I'm still looking.

**The_Capt** · 01-17-2023 12:46 PM

Originally Posted by F10TT

Last year I had Hawk and EBC both tell me we'd see something from them by the end of 2022. Still waiting. I'll need pads and rotors by early Summer so I'm still looking.

I also reached out to Girodisc and they’re short answer was the tooling alone would be close to $30k to build the molds for brake kit options (rotors, pads) and he didn’t see the potential market opportunity for the C8 platform to justify their investment.

Sent from my iPhone using Audizine Forum

**romanster** · 01-17-2023 02:19 PM

Sigh, that’s a bummer to hear. EBC Hawk and Girodisc, they would just be semi metallic compounds anyway though? I’d have hoped a Powerstop Z23 ceramic or equivalent would have been offered for the C8 brakes by now.
Economies of platform opportunity, Dynamic Friction offers not 1 but 2 pad type options for the C8, and cheap from rockauto, they just happen to both be semi-metallic formulations, or whatever “advanced low metallic” means. Listed under Urus, Taycan, and RS6.

Cheers for the help, I’ll reach out to other vendors that offer these 10-piston kits and post back here with what else I see out there.

**DeputyDog95** · 01-19-2023 05:31 AM

Originally Posted by romanster

Hi all, I purchased the 10-piston Akebono front brake kit with 420mm iron rotors, going onto my Volvo V90. It’s the same setup as the non-carbon-ceramic C8 RS6 & RS7.

Out of curiosity, why?

**Brosef** · 01-19-2023 06:50 AM

Originally Posted by romanster

Sigh, that’s a bummer to hear. EBC Hawk and Girodisc, they would just be semi metallic compounds anyway though? I’d have hoped a Powerstop Z23 ceramic or equivalent would have been offered for the C8 brakes by now.
Economies of platform opportunity, Dynamic Friction offers not 1 but 2 pad type options for the C8, and cheap from rockauto, they just happen to both be semi-metallic formulations, or whatever “advanced low metallic” means. Listed under Urus, Taycan, and RS6.

Cheers for the help, I’ll reach out to other vendors that offer these 10-piston kits and post back here with what else I see out there.

I would be all in on some lower dust pads. I wouldn't care if they charged double what they do for their higher volume car platform pads.

I've had awesome experience with PowerStop - as good or better than stock on the street and virtually no dust. this isn't a platform that I would take to the track, but if I did, I imagine I'd probably need different pads for that anyway to avoid the dreaded pad deposits (done that too many times on stock brakes).

**romanster** · 01-19-2023 11:37 AM

Originally Posted by DeputyDog95

Out of curiosity, why?

Because.
Tinkering is fun, and having giant yellow bananas behind the wheels lets others know your car is better than theirs. I already have a CTS-V 6pot 380mm yellow Brembo kit on the V90, but having seen all the 10piston kits, there’s no going back. These things dwarf every other brake set up out there.

Kits like these are transferrable, swapping the caliper bracket and rotor hat will make it fit any vehicle, so it’s pretty future proof after the initial investment. Keep all the original brake parts to return to stock when the time comes to sell.

The Powerstop ceramic pads are excellent, especially how clean they keep. OEMs still like speccing semi-metallic pads because having bite-y grabby brakes impresses the normies during test drives.

**DeputyDog95** · 01-19-2023 12:38 PM

Originally Posted by romanster

Because.
Tinkering is fun, and having giant yellow bananas behind the wheels lets others know your car is better than theirs. I already have a CTS-V 6pot 380mm yellow Brembo kit on the V90, but having seen all the 10piston kits, there’s no going back. These things dwarf every other brake set up out there.

Kits like these are transferrable, swapping the caliper bracket and rotor hat will make it fit any vehicle, so it’s pretty future proof after the initial investment. Keep all the original brake parts to return to stock when the time comes to sell.

The Powerstop ceramic pads are excellent, especially how clean they keep. OEMs still like speccing semi-metallic pads because having bite-y grabby brakes impresses the normies during test drives.

No issues with your ABS or brake bias? I would think it would be freaking your ECU out.

**romanster** · 01-19-2023 01:02 PM

The math adds up from a piston fluid displacement aspect, these 10 smaller pistons end up right where even the basic 1 piston sliding calipers are pushing.
The next issue would be torque bias as the front rotor size increases, it can feel a bit nose heavy when really hammering it, but cars are smart enough to deal with it before it becomes a risk of breaking the rear tires loose.
That’s when only doing the front kits, they do sell rear kits to even things out, for cars like ours with electronic parking brakes, they are dual caliper read setups with dedicated EPB calipers, like the Tesla S, and R8. My rear kit has a 4pot Brembo Caliper and Tesla EPB caliper, on a 380mm rotor.

How does Audi still spec old-timey single piston sliding calipers on these six-figure vehicles? Spec’ing monoblock calipers would be trivial, but sure would improve the looks.

**DeputyDog95** · 01-19-2023 01:13 PM

Originally Posted by romanster

The math adds up from a piston fluid displacement aspect, these 10 smaller pistons end up right where even the basic 1 piston sliding calipers are pushing.
The next issue would be torque bias as the front rotor size increases, it can feel a bit nose heavy when really hammering it, but cars are smart enough to deal with it before it becomes a risk of breaking the rear tires loose.
That’s when only doing the front kits, they do sell rear kits to even things out, for cars like ours with electronic parking brakes, they are dual caliper read setups with dedicated EPB calipers, like the Tesla S, and R8. My rear kit has a 4pot Brembo Caliper and Tesla EPB caliper, on a 380mm rotor.

How does Audi still spec old-timey single piston sliding calipers on these six-figure vehicles? Spec’ing monoblock calipers would be trivial, but sure would improve the looks.

Interesting. I club race a Cayman R on Pirelli slicks with stock calipers and stock sized rotors/pad, and even that small change drives the ABS wild and constantly results in "ice mode" under heavy deep braking. It's actually terrifying at times when the pedal goes hard but your car doesn't slow down. I would switch to a motosports ABS, but my car is a PDK and it won't interface.

**romanster** · 01-19-2023 01:42 PM

That does sound scary. Almost like the traction control system is overly sensitive to changes in wheel rotation. I can’t imagine you’d be losing traction with track slicks when hammering the brakes, but if the rear is unweighted enough to register a different rotation rate than the front wheels, the ABS could interpret that as traction loss and compensate by pulsing the pump.
Any difference when disabling traction control and stability control? I thought there were track modes to turn off the nannies, since they can get in the way sometimes.

**DeputyDog95** · 01-19-2023 01:57 PM

Originally Posted by romanster

That does sound scary. Almost like the traction control system is overly sensitive to changes in wheel rotation. I can’t imagine you’d be losing traction with track slicks when hammering the brakes, but if the rear is unweighted enough to register a different rotation rate than the front wheels, the ABS could interpret that as traction loss and compensate by pulsing the pump.
Any difference when disabling traction control and stability control? I thought there were track modes to turn off the nannies, since they can get in the way sometimes.

That's the only way I run it. TC and SC are always off, sport mode + always engaged. It's the ABS... The guys running manuals switch to motorsports ABS and the problem disappears, so it's 100% the computer being overwhelmed by the slicks under racing conditions. Sucks...

**carguyshu** · 01-19-2023 07:16 PM

Originally Posted by romanster

Sigh, that’s a bummer to hear. EBC Hawk and Girodisc, they would just be semi metallic compounds anyway though? I’d have hoped a Powerstop Z23 ceramic or equivalent would have been offered for the C8 brakes by now.
Economies of platform opportunity, Dynamic Friction offers not 1 but 2 pad type options for the C8, and cheap from rockauto, they just happen to both be semi-metallic formulations, or whatever “advanced low metallic” means. Listed under Urus, Taycan, and RS6.

Cheers for the help, I’ll reach out to other vendors that offer these 10-piston kits and post back here with what else I see out there.

i see nothing on rock auto listed for brake pads on a 22 RS6. where are you finding this?

**romanster** · 01-19-2023 09:44 PM

Look for them under
21 RS6
21 Lambo Urus
21 Taycan, Panamera V8, Cayenne V8

The Porsches even show pad options for the carbon ceramic rotors.

**carguyshu** · 01-20-2023 08:00 AM

Originally Posted by romanster

Look for them under
21 RS6
21 Lambo Urus
21 Taycan, Panamera V8, Cayenne V8

The Porsches even show pad options for the carbon ceramic rotors.

According to that entry those pads only work for cars that were produced prior to July 6th 2020, which indicates they may have changed the caliper design after that. It oddly does not mention the RS7 either which should have the same brakes.

**romanster** · 01-20-2023 11:29 AM

Saw that too, don’t understand why, but not worried. Was the C8 RS6/7 offered prior to 7/6/2020?
The oem Audi pad number gets superseded a bunch of times on the Audi parts site, eventually to a single active number that covers all the C8 RS6/7 model years anyway.

Pads for iron rotor 420x40mm
4M8698151D
Supercessions:
4M8698151C
4M8698151

Fits between 2020 and 2022
-RS6 to 7/6/2020
-RS6 7/6/2020 to 5/31/2021
-RS6 from 5/31/2021

Like, what? Just say it fits all.

**FBAnder** · 01-20-2023 04:54 PM

Not in stock. Curious as to how much cheaper the pads are vs what Audi is charging for them...I surmise the different will be astrofuckinomical.

**romanster** · 01-20-2023 05:34 PM

Hmm they delisted the Dynamic Friction pads from the RS6 and RSQ8 section, only leaving the out of stock Centrics.
They’re still up under the Porsches and Lamborghini I mentioned above.

The oem pad price is absolutely bonkers.

**FBAnder** · 03-29-2023 11:11 AM

Bumping this to see if anyone has seen pads and or rotors for the C8. Still seems to be tumbleweed city.

**PsYkHoTiK** · 03-29-2023 04:11 PM

I ran into these:
https://racingbrake.com/pd1899-391/

https://racingbrake.com/-pd1547-391/

I've heard of the brand but don't have any direct experience.

I reached out to Carbotech and they haven't gotten back to me yet.

**carguyshu** · 03-30-2023 06:27 AM

Originally Posted by PsYkHoTiK

I ran into these:
https://racingbrake.com/pd1899-391/

https://racingbrake.com/-pd1547-391/

I've heard of the brand but don't have any direct experience.

I reached out to Carbotech and they haven't gotten back to me yet.

Gloc (uses same compounds as carbotech & is a spin-off company due to a dispute) says they’ll make them. Try contacting them.

**DeputyDog95** · 05-02-2023 07:04 AM

Bump to see if there is any new info...

I am at about 27k miles.

Pads are down to 5mm and the front rotors (steel) are developing a lip.

The dealer quoted around $4k ish (parts and labor) to replace the pads and rotors. That seems a little excessive for brakes (most of it was parts).

Are there any aftermarket options for pads and rotors yet?

**OneFastBMW** · 05-02-2023 09:39 AM

I have seen some aftermarket steel to ceramic conversions (includes pads and rotors), but no direct replacement for steels.

With some digging, EBC shows part numbers for replacement pads on their website, but I cannot find them actually for sale anywhere. Maybe a call to an EBC distributor could lead you in the right direction. I had to do UK/EU for the country. If I selected “US” nothing came up. For the rear pads, nothing came up for the RS6, but something did come up for the RS Q8. Both of these vehicles use the same factory part number for rear brakes, so aftermarket pads should be cross compatible.

YellowStuff Front Pad: Part Number DP42492R
YellowStuff Rear Pad: Part Number DP42456R

I have never used YellowStuff before, but it is their high performance street pad. I have used RedStuff (their low dust pads) on other cars and been happy with EBC.

**sdaudiguy** · 05-02-2023 11:30 AM

Originally Posted by OneFastBMW

I have seen some aftermarket steel to ceramic conversions (includes pads and rotors), but no direct replacement for steels.

With some digging, EBC shows part numbers for replacement pads on their website, but I cannot find them actually for sale anywhere. Maybe a call to an EBC distributor could lead you in the right direction. I had to do UK/EU for the country. If I selected “US” nothing came up. For the rear pads, nothing came up for the RS6, but something did come up for the RS Q8. Both of these vehicles use the same factory part number for rear brakes, so aftermarket pads should be cross compatible.

YellowStuff Front Pad: Part Number DP42492R
YellowStuff Rear Pad: Part Number DP42456R

I have never used YellowStuff before, but it is their high performance street pad. I have used RedStuff (their low dust pads) on other cars and been happy with EBC.

I used the yellows on my charger and they were great. Better stopping and less dust. Not same as the red for less dust but better than the stocks.

**DeputyDog95** · 05-02-2023 02:57 PM

I can't believe after 3 years, we don't have aftermarket options for steel rotors and brake pads.

Do the RSQ8 share the same front and rear rotors as the RS6?

**MocoLoco** · 07-14-2023 06:35 PM

I’m new to the forum. I just wanted to see if anyone found any new info on aftermarket pads/rotors? I came across these RS7 pads:

https://shop.redline360.com/products...yABEgLVsPD_BwE

Do you guys think they will fit? I’m not in need of pads yet, but when it comes I’d like to be better prepare. Racing Brakes CCB conversion sounds tempting, but I’m not sure if those are available yet.

**jzhu625** · 07-14-2023 06:42 PM

wow, would like to know if fit RSQ8 as well

**MocoLoco** · 07-15-2023 06:46 AM

Here’s another option I found. Does anyone have experience with MTM? It looks like an iron to CCB conversion.

https://www.mtm-usa.com/products/car...39609003343985

**DeputyDog95** · 07-15-2023 11:33 AM

A couple of months ago, I brought mine in for the 37th recall... They said it needed new pads and rotors. I said, "How much?" They said around $5500 with tax, blah blah, blah. And you need new tires. I didn't do either repair and sold it back to them for a nice profit LoL I'm shocked at how expensive steel rotors and pads are for the Avant. Especially after tracking a GT3 for years and club racing a Cayman R. Those brake jobs are cheap by comparison!

**OneFastBMW** · 07-16-2023 07:58 PM

Originally Posted by MocoLoco

Here’s another option I found. Does anyone have experience with MTM? It looks like an iron to CCB conversion.

https://www.mtm-usa.com/products/car...39609003343985

I would not touch anything from MTM-USA with a 100 ft pole. Too many stories of people like me who purchased something, never shipped, after months of asking for a refund, they finally went radio silent on me. I had to get AmEx to do a chargeback.

**burbletune** · 07-19-2023 05:41 PM

Yup ordered air intake from MTM florida and they never sent it
after waiting 6 months i did charge back as well
horrible customer service

**KJ-RS** · 07-20-2023 07:21 AM

Looks like EBC offers a full line of Front and Rear pads for the RS6 now.

https://ebcbrakes.com/vehicle/usa/AUDI/RS6/

**OneFastBMW** · 07-20-2023 07:55 AM

Finally!!

I have had RedStuff brakes on many vehicles in the past and recommend them.

**jzhu625** · 07-21-2023 01:00 PM

it's about time but we can't get it anywhere, just googled the parts and nothing found!

**KJ-RS** · 07-21-2023 01:23 PM

I emailed them directly and my local EBC retailer as well to see if they have it in stock. At least there's a part number, which means it's "on the way".