2019-2025 Audi RS7 (C8) Carbon Ceramic Big Brake Kit — Akebono 10N Audi RS 10-Piston
Official Warranty: 1‑year free replacement for quality defects or coating issues under normal (non-track) use.
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Will This Fit My Car?
Full Upgrade CCB Big Brake Kits (With Calipers) for the 2019-2025 Audi RS7 (C8). This page's exact brake setup:
| Model Years | Front Setup | Rear Setup | Min. Wheel Size |
|---|---|---|---|
| 2019-2025 | Akebono OEM Audi RS 10-Piston (10N) Caliper / 420mm | TTSPORT EP4 4-Piston Forged Caliper integrated with EPB / 380mm | 21" |
This kit is built per car, not per platform. We engineer the brackets, rotor-hat offsets, and caliper mounting to your confirmed model and trim, because trims sharing a chassis name frequently differ underneath — performance variants can run different knuckles, hub geometry, and wheel ET clearance than their standard siblings. You receive calipers, pads, rotor hats, floating hardware, and brake lines as one matched, trim-specific system. Cars with modified knuckles, uprights, or non-factory suspension mounting points need review before ordering.
The 420 mm rotor sets the minimum wheel size at 21" — smaller wheels will not clear the caliper and rotor. Spoke profile and offset also affect clearance; confirm your exact wheels before ordering.
| Wheel Size (Standard) | Disc Range |
|---|---|
| 15" | 260 mm – 285 mm |
| 16" | 285 mm – 300 mm |
| 17" | 300 mm – 330 mm |
| 18" | 330 mm – 355 mm |
| 19" | 355 mm – 380 mm |
| 20" | 380 mm – 400 mm |
| 21" | 400 mm – 420 mm |
| 22" | 420 mm – 440 mm |
What's in the Box
| Item | Details |
|---|---|
| Product type | Full Upgrade CCB Big Brake Kits (With Calipers) |
| Front calipers | Akebono OEM Audi RS 10-Piston (10N) Caliper OE / Part No.: L 4M8615107A · R 4M8615108A |
| Front CCB rotors | 420mm |
| Rear calipers | TTSPORT EP4 4-Piston Forged Caliper integrated with EPB |
| Rear CCB rotors | 380mm |
| CCB brake pads | Matched ceramic-compatible compound for the supplied StopFlex carbon ceramic rotors |
| Rotor hats and floating hardware | Vehicle-specific hardware package |
| Brake lines | Included for complete kit-upgrade orders |
| Order scope | Default listing is full-car set when front and rear are specified. Front-only or rear-only orders can be arranged after confirmation. |
Make It Yours — Color & Logo Customization
Every StopFlex kit order can be finished with custom caliper colors, a custom caliper logo, and custom rotor hat colors — the brake package matches your exact build, not a fixed off-the-shelf look.
- Custom caliper color
- Custom caliper logo
- Custom rotor hat color
Why Carbon Ceramic — and Why StopFlex
Low Visible Dust
Matched with StopFlex pads, the system sheds a fraction of the dust an iron rotor and pad combination throws. Wheels stay clean for weeks of driving instead of days.
Premium Ceramic-Glaze Finish
StopFlex's proprietary coating gives the disc a bright ceramic-glaze surface with subtle texture — the factory carbon-ceramic look, clearly visible through open wheel designs.
Continuous Fiber Construction
StopFlex discs are built with long continuous carbon fiber instead of chopped short fiber. Continuous strands carry load across the whole rotor body, raising strength and thermal durability under heat cycles.
Bespoke Per-Vehicle Engineering
Every order is machined to the confirmed vehicle and trim. Brackets, hat offsets, and pad shapes are built for that exact car — never pulled from a one-size-fits-all catalog.
CCB-Specific Pad Compound
A low-metallic resin pad compound reinforced with steel, copper, and aramid fiber, made for ceramic discs: stable to about 750 °C, roughly 0.44 average friction, strong fade resistance, low rotor wear.
Lower Unsprung Mass
A carbon-ceramic rotor weighs roughly half of the equivalent iron disc. Less rotating, unsprung mass lets the suspension follow broken pavement more cleanly and makes steering response noticeably sharper.
High-Temperature Stability
The carbon-silicon-carbide friction matrix keeps working at temperatures that push iron rotors into heavy fade, so the tenth hard stop feels like the first — same pedal travel, same bite point.
Rust-Free Rotor Surface
Ceramic discs cannot flash-rust. After rain, a wash, or weeks of parking, the rotor face behind your open-spoke wheels stays clean — no orange ring on a freshly detailed car.
Long Street-Service Life
In normal road use with matched pads and correct bedding, one StopFlex CCB rotor set is engineered to outlast several sets of iron replacement rotors, recovering part of the up-front cost.
Winter & Cold-Weather Braking
Cold facts first: an untuned ceramic disc bites less than iron on a freezing morning — physics, not a defect. StopFlex tuned both the pad compound and the disc's ceramic coating for cold starts, so winter cold-car braking now feels very close to summer. Leave extra margin on the very coldest first stops; severe-climate daily drivers should build Street Spec.
Caliper Overview
Front Caliper
The front uses the Akebono OEM Audi RS 10-Piston (10N) caliper, the same monobloc unit Audi specs for its factory ceramic package on the C8. Ten pistons give even pad loading across the 420 mm rotor and a firm, repeatable pedal on long descents and repeated high-speed stops.
Rear Caliper
The rear runs the TTSPORT EP4 4-Piston Forged Caliper with an integrated EPB actuator: 4 hydraulic service pistons (28 mm) handle braking while a dedicated 27 mm actuator piston preserves the factory electronic parking brake. It's a two-piece forged-aluminum body, about 4.50 kg per caliper without pads, 30.4 cm² total piston area, so you keep OE parking-brake function while adding real rear-axle thermal capacity on the 380 mm rotor.
Choose Your Rotor: Street, Track-Day, or Motorsport
Street Spec
Ceramic coating, cross-drilled face, and large cooling channels.
Best for daily driving and premium street builds that need clean cold bite, low dust, corrosion-free appearance, and long service life.
Track-Day Spec
Ceramic coating, blank face, and honeycomb cooling channels.
Best for fast-road and track-day use where repeated braking stability matters more than maximum visual drilling style.
Motorsport Spec
Uncoated blank face with honeycomb cooling channels.
Best for race-focused builds that run competition pads, high-temperature fluid, cooling strategy, and a proper warm-up window. Not the default street choice.
Heat Management Note
Ceramic discs shrug off surface temperatures that would destroy iron, but the rest of the system still heats up: pads, fluid, seals, calipers, and wheels all absorb soak heat during repeated hard stops. For track days, long descents, and sustained hard driving, run brake cooling and high-temperature fluid.
Get Your Fitment Confirmed
Share your year, model, trim, wheel size, current rotor dimensions, and caliper type — every order is verified against your VIN-level configuration before it goes to production.
FAQ
How does this kit behave in winter and on cold first stops?
Physics first: any cold carbon-ceramic disc bites a little less than cold iron until it's up to temperature, which is normal for the material and not a fault. We tune around it by pairing a carbon-ceramic-specific low-metallic pad (about 0.44 average friction) with an optimized ceramic disc coating, so cold-car feel on the C8 comes very close to summer feel. On the coldest first stops, leave a little extra following distance until the front 420 mm and rear 380 mm rotors warm through.
There were different C8 brake packages from the factory — will this fit my exact RS7?
This is why we confirm setup before building. The C8 chassis shipped with multiple brake packages, and even S7 versus RS7 iron cars differ, so we don't assume fit from the platform name. Each kit is engineered for your confirmed RS7 trim: brackets, rotor-hat offsets, and caliper mounting are matched to your exact knuckle and hub geometry. Send us your VIN and current setup and we verify it before anything is machined.
What wheels do I need to clear the 420 mm front rotor?
The 420 mm front disc with the Akebono 10-piston caliper requires a minimum 21-inch wheel. Anything under 21 inches will not clear the caliper. Spoke shape and inner-barrel clearance matter too, so send us your wheel make, size, and offset and we'll confirm clearance for your specific fitment.
Do I lose the electronic parking brake with a rear big-brake caliper?
No. The TTSPORT EP4 rear caliper has a dedicated 27 mm EPB actuator piston built in, so your factory electronic parking brake keeps working exactly as it does now — the switch, auto-hold, and hill-hold all function. You gain rear thermal capacity on the 380 mm rotor without giving up OE parking-brake convenience.
More Contact Information
We’re here to help! Whether you need expert advice on brake setups, have questions about your order, or just want to share feedback, our team is ready to assist you. Reach out via your preferred channel below, or use the inquiry form.
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