2017-2026+ Audi RS5 / S5 (B9) Carbon Ceramic Brake Kit
Official Warranty: 1‑year free replacement for quality defects or coating issues under normal (non-track) use.
2017-2026+ Audi RS5 / S5 (B9) Carbon Ceramic Brake Kit — OEM-Size Replacement
The B9 RS5/S5 owner shopping carbon ceramic brakes is usually trying to get away from heavy iron rotors, front dust on open Audi wheels, and repeat high-speed heat that can shorten pad and rotor life. This OEM-size StopFlex kit replaces the listed factory dimensions only: RS5 375 mm or 400 mm CCB front with 330 mm rear, and S5 350 mm front with 330 mm rear, using carbon-ceramic rotors, matched pads, hats, and floating hardware. The result is a direct-size replacement approach that preserves the intended caliper position while reducing rotating mass, brake dust, and heat-related fade compared with conventional iron service parts.
- RS5 fitment is limited to the listed 375 mm front iron-size package or the 400 mm factory CCB-size package, both paired with 330 mm rear rotors.
- S5 fitment is limited to the B9 350 mm front and 330 mm rear brake package; this is not a caliper-conversion page for non-listed rotor sizes.
- Floating hats and hardware are included so the carbon-ceramic discs can expand separately from the aluminum hat during repeated highway or track braking events.
Fitment Hard Lines
| Field | Specification |
|---|---|
| Vehicle | Audi RS5 / S5 (B9) |
| Model years | 2017-2026+ |
| Front rotor reference | RS5: 375mm, 400mm (CCB); S5: 350mm |
| Rear rotor reference | RS5: 330mm; S5: 330mm |
| Page type | OEM-size carbon ceramic replacement |
| Minimum wheel size | 19" (for the 375 mm rotor) |
For OEM replacement orders, StopFlex builds around the factory rotor specification shown for this vehicle. Front floating-caliper setups require manual review before production. If the car uses aftermarket calipers such as Brembo, AP Racing, Alcon, or Wilwood, the order can still be built, but the exact caliper model, pad shape, and rotor dimensions must be confirmed before production.
This setup uses a 375 mm rotor, so the minimum wheel size is 19". Wheels under 19" will not clear the caliper and rotor, and spoke profile and offset affect clearance too — confirm your exact wheels before ordering.
Why StopFlex CCB
Lower Unsprung Mass
StopFlex carbon-ceramic rotors are engineered to reduce rotor mass versus comparable iron discs, helping the suspension react cleaner and the steering feel more precise.
High-Temperature Stability
The carbon-silicon-carbide matrix is built for stable braking behavior at temperatures that can push iron rotors into heavy fade.
Rust-Free Rotor Surface
Carbon ceramic does not form orange flash rust after rain, washing, or storage, keeping the visible rotor face cleaner behind open wheels.
Long Street-Service Potential
In normal road use with matched pads and proper bedding, StopFlex CCB rotors are designed for far longer service life than typical iron replacement rotors.
Low Visible Dust
When paired with matched StopFlex pads, the system produces very low visible brake dust compared with conventional iron rotor and pad combinations.
Premium Ceramic-Glaze Appearance
StopFlex's proprietary coating creates a bright, high-end ceramic-glaze finish with subtle glaze texture and a more premium visual character behind open wheels.
Street-Usable Cold Bite
Street Spec and Track-Day Spec rotors are designed for normal first-stop road use, including cold-weather operation. Motorsport Spec is the competition-focused exception.
Continuous Fiber Reinforcement
Long-fiber carbon ceramic construction improves structural strength and thermal durability versus chopped-fiber approaches.
Custom Rotor Hat Color
Every StopFlex OEM replacement order can be built with a custom rotor hat color, giving the carbon ceramic rotor package a cleaner match with the wheel, body color, and overall build style.
Heat Management Note
Carbon ceramic rotors tolerate extreme surface temperature, but they do not remove every heat-management requirement. During repeated hard stops, heat can still soak into pads, fluid, seals, calipers, wheels, and nearby components. For long track sessions, mountain descents, or sustained aggressive driving, brake cooling and high-temperature fluid are still recommended.
Street / Track-Day / Motorsport Rotor Options
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.
Package Scope
| Item | Details |
|---|---|
| CCB rotors | Full-car set by default |
| CCB brake pads | Matched for StopFlex carbon ceramic rotors |
| 7075 aluminum floating rotor hats | Vehicle-specific fitment |
| Stainless floating hardware | Full-car hardware set |
| Rotor hat color | Custom rotor hat colors are available for every OEM replacement order. |
| Order scope | Default listing is full-car set. Front-only or rear-only orders can be arranged after confirmation. |
FAQ
Will this fit every 2017-2026+ Audi RS5 or S5 B9?
No. This page is only for the exact B9 RS5/S5 trims and rotor sizes listed here: RS5 375 mm or 400 mm CCB front with 330 mm rear, and S5 350 mm front with 330 mm rear. Confirm your current rotor diameter and caliper package before ordering.
Does the kit keep the factory electronic parking brake and auto-hold functions?
The rear components are built around the listed 330 mm B9 rear brake package, so the kit is intended to retain the factory rear caliper layout, including EPB-related operation. Confirm your VIN, rear rotor size, and rear caliper type if the car has been modified.
Why switch a B9 RS5 or S5 from iron rotors to carbon ceramic?
Carbon-ceramic rotors reduce rotating and unsprung mass at each corner, produce far less visible brake dust than iron discs, and tolerate repeated heat cycles better in fast road or occasional track use. On the B9 RS5/S5, those gains matter because the car is heavy, AWD, and commonly driven on large open-spoke wheels.
What should I verify before ordering?
Measure or confirm the front rotor size, rear rotor size, trim, model year, and whether the RS5 has the 375 mm iron-size front setup or 400 mm factory CCB-size front setup. Also confirm wheel clearance, especially on cars with aftermarket wheels, spacers, or non-OE calipers.
Need Fitment Confirmation?
Send the exact vehicle details, current rotor sizes, and caliper type before ordering.
More Contact Information
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