2020-2026+ Audi S8 (D5) Carbon Ceramic Brake Kit
Official Warranty: 1‑year free replacement for quality defects or coating issues under normal (non-track) use.
2020-2026+ Audi S8 (D5) Carbon Ceramic Brake Kit — OEM-Size Replacement
The D5 Audi S8 is heavy, fast, and hard on brakes during repeated high-speed stops, especially when the factory iron setup is already due for rotors and pads. This StopFlex OEM-size replacement kit is built around the S8 brake references on this page: 400mm or 420mm carbon-ceramic front rotors and 350mm or 370mm carbon-ceramic rear rotors, with matching pads, hats, and floating hardware. The payoff is lower brake dust, reduced unsprung mass, and more stable rotor behavior under heat while keeping the factory caliper architecture for the listed brake configuration.
- Covers only the 2020-2026+ Audi S8 D5 brake configurations listed on this page: 400mm or 420mm front rotor references and 350mm or 370mm rear rotor references.
- Designed as an OEM-size replacement for the S8 D5, so rotor diameter, hat offset, pad shape, and floating hardware must match the original brake package before ordering.
- Carbon-ceramic rotors reduce the dust and corrosion issues common with large iron rotors on open-wheel S8 fitments while improving repeated-stop heat stability on a 4.0T luxury sedan.
Fitment Hard Lines
| Field | Specification |
|---|---|
| Vehicle | Audi S8 (D5) |
| Model years | 2020-2026+ |
| Front rotor reference | S8: 400mm, 420mm (CCB) |
| Rear rotor reference | S8: 350mm, 370mm (CCB) |
| Page type | OEM-size carbon ceramic replacement |
| Minimum wheel size | 20" (for the 400 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 400 mm rotor, so the minimum wheel size is 20". Wheels under 20" 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 kit fit every 2020-2026+ Audi S8 D5?
No. Fitment is limited to the exact S8 D5 trim and brake package listed for this page. Confirm whether your car has 400mm or 420mm front rotors and 350mm or 370mm rear rotors before ordering.
Does this retain the factory electronic parking brake?
Yes, when ordered for the correct S8 D5 rear brake configuration, the kit works with the factory rear caliper layout and electronic parking brake system. It does not convert the rear caliper or delete EPB function.
Why replace the OEM iron brakes with carbon ceramic on this car?
The S8 D5 carries substantial speed and mass, so repeated hard stops can put heavy thermal load into the front rotors. Carbon-ceramic rotors reduce dust, cut rotating and unsprung weight, and resist heat-related performance drop better than an equivalent iron service setup.
What should I confirm before ordering?
Verify model year, D5 chassis, front and rear rotor diameters, wheel clearance, and whether the car was originally equipped with iron or carbon-ceramic brakes. The 420mm front and 370mm rear CCB package requires the correct caliper and wheel clearance.
Need Fitment Confirmation?
Send the exact vehicle details, current rotor sizes, and caliper type before ordering.
More Contact Information
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