2008-2016 Audi RS5 (B8) Carbon Ceramic Big Brake Kit — Akebono 8N Audi S 6-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 2008-2016 Audi RS5 (B8). This page's exact brake setup:
| Model Years | Front Setup | Rear Setup | Min. Wheel Size |
|---|---|---|---|
| 2008-2016 | Akebono OEM Audi S 6-Piston (8N) Caliper / 380mm | TTSPORT EP4 4-Piston Forged Caliper integrated with EPB / 380mm | 19" |
Every StopFlex kit is bespoke-engineered for your exact model and trim — brackets, rotor-hat offsets, and caliper mounting are matched to your specific car, never assumed from the platform. Trims that share a chassis name can differ mechanically: a pure performance variant often carries different knuckles, hub geometry, and wheel ET clearance than the standard models, so parts that bolt onto one are not the parts that fit the other. Calipers, pads, rotor hats, floating hardware, and brake lines ship as one matched system built to your confirmed trim. Modified knuckles, uprights, or non-factory suspension mounting points must be reviewed before ordering.
The 380 mm rotor sets the minimum wheel size at 19" — 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 S 6-Piston (8N) Caliper OE / Part No.: L 8W0-615-107AK · R 8W0-615-108AK |
| Front CCB rotors | 380mm |
| 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
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.
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.
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 S 6-Piston (8N) caliper, the same monobloc Audi engineered for its S/RS front axle, mounted over a 380mm carbon-ceramic rotor. Six pistons spread clamping load evenly across a taller pad, which keeps pedal feel firm and repeatable on the RS5's 4.2L V8 mass.
Rear Caliper
The rear is the TTSPORT EP4 4-Piston Forged Caliper with an integrated electronic parking brake. It runs 4 hydraulic service pistons (28mm) for braking plus a dedicated 27mm EPB actuator piston, so the RS5 keeps its factory electric parking brake while gaining real rear-axle thermal capacity. The two-piece forged-aluminum body weighs about 4.50 kg per caliper without pads and carries roughly 30.4 cm-squared of piston area.
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
Before ordering, tell us the exact vehicle, current rotor sizes, and caliper type. Nothing goes to production until the build is confirmed against your VIN-level configuration.
FAQ
Will these clear my wheels, and do I need a specific size?
The front and rear rotors are both 380mm, so the minimum wheel size is 19 inches. Wheels under 19 inches will not clear the rotor, and spoke shape matters too, so send us your exact wheel model or a photo behind the spokes before you order and we'll confirm clearance for your RS5.
Is this a bolt-on kit for any B8, or is it matched to my RS5?
It's bespoke-engineered for your confirmed B8 RS5 trim, not a platform-wide bolt-on. The RS5 uses different front knuckles, hub geometry, and wheel offset than a standard A5 or S5, so the brackets, rotor-hat offsets, and caliper mounting are cut to your specific car. We do not assume fitment from the chassis name.
How do these brakes behave in winter or on a cold start?
A cold carbon-ceramic disc naturally bites a little less than cold iron on the first stops. That's physics, not a fault. We optimized both the pad compound and the disc's ceramic coating for cold starts, so cold-car feel now comes very close to summer feel. Still, leave a little extra following distance on your first few stops on the coldest mornings until the system is up to temperature.
Why go carbon ceramic instead of replacing the OEM Audi CCB setup?
OEM Audi CCB parts are priced far above sane replacement cost, and factory CCB rotors tend not to survive repeated hard track use once overheated. This kit pairs the Akebono 6-piston front and TTSPORT EP4 rear with StopFlex carbon-ceramic rotors and a carbon-ceramic-specific low-metallic pad rated to about 750 °C with an average friction coefficient near 0.44, so you get lasting fade resistance without dealer-level pricing.
More Contact Information
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