The Build: Parts And Fitment
| Spec | STOPFLEX C63S W205 Build |
|---|---|
| Vehicle | Mercedes-AMG C63S (W205) |
| Front rotor | 390 mm carbon ceramic |
| Rear rotor | 360 mm carbon ceramic |
| Front caliper | Factory AMG fixed caliper (retained) |
| Rear caliper | Factory AMG rear caliper layout (retained) |
| Pads | STOPFLEX CCB-matched pad compound |
| Wheels shown | Factory 19-inch AMG multi-spoke |
| Scope | Front and rear rotor and pad upgrade on factory calipers |
Confirm before you order
This is a rotor-and-pad conversion built around the C63S factory AMG calipers and factory 19-inch AMG wheels. The original caliper geometry has to stay in place for the rotor sizing to work, so check your exact caliper and wheel setup first — especially if the car runs aftermarket wheels or a non-C63S brake configuration.
What Carbon Ceramic Changes On A C63S
| STOPFLEX feature | Why it matters on the W205 C63S | What you notice |
|---|---|---|
| Carbon ceramic rotor, about half the weight of a same-size steel rotor | The C63S is a heavy, front-engined sedan, and every kilo at the rotor is unsprung and rotating mass the front end has to control | A lighter, more alert front end and quicker turn-in, with less weight thrown around over bumps |
| Long-fiber CCB construction and high heat tolerance | On a fast road or a track day the problem is repeated stops after the system is already hot, not one panic stop from cold | A pedal and bite window that stay consistent as the pace climbs instead of going soft |
| Stable friction at extreme temperature — around 0.3μ even at 900°C | A 503-horsepower AMG dumps a lot of energy into the brakes when you drive it the way it was built to be driven | Confidence on a long downhill or a hard session, with no surprise drop in stopping power |
| STOPFLEX pads with over 0.4μ at normal temperature, normal first stop near -20°C | Carbon ceramic on some cars trades cold bite for heat capacity; you still want a clean stop on a cold morning | Natural cold response on the first stop of the day, not a wooden pedal until things warm up |
| Very low dust with matched pads, and rotors that don't rust | The C63S runs an open AMG wheel where the brake face is always on display, and iron rotors rust after every wash | Cleaner wheels between washes and a brake face that still looks right after rain |
| Crackle-texture ceramic coating with a reflective finish | The brakes are a visible part of the car's look through the spokes | A finish that reads as premium hardware, not a generic replacement rotor |
What gets better
- Less unsprung and rotating mass at all four corners
- More consistent pedal and bite when the brakes are hot
- Very low brake dust with the matched STOPFLEX pads
- No rotor rust after rain or a wash
- Normal cold bite, including a normal first stop near -20°C
- Long street life, roughly 250,000 to 300,000 km off the track
What to confirm first
- The car is a C63S (W205) on the factory AMG calipers shown
- Front and rear caliper configuration matches this build
- Wheel and caliper clearance for 390 mm front and 360 mm rear rotors
- Aftermarket or non-19-inch wheels are checked individually
- You're running the matched STOPFLEX pads, not a random compound
If you're not sure your car matches the spec shown here, send us your details and we'll confirm Mercedes-AMG C63S W205 fitment before you order through our Mercedes-Benz CCB collection.
Build Gallery
FAQ
Do I have to replace the factory AMG calipers for this upgrade?
No. This build keeps the factory AMG fixed front calipers and the factory rear caliper layout. It upgrades the rotor and pad package to carbon ceramic, which is what cuts weight and improves heat resistance on the W205 C63S.
Is this carbon ceramic setup okay for fast road driving and the occasional track day?
Yes. Carbon ceramic rotors handle repeated heat cycles far better than iron, so the pedal and bite stay more consistent when you push the car on a back road or a circuit.
Will STOPFLEX CCB actually cut brake dust and rotor rust on the C63S?
Yes. Paired with STOPFLEX pads, brake dust is very low compared with an aggressive iron setup, and the rotors do not rust after rain or a wash, so the brake face stays clean behind an open AMG wheel.
Does this kit fit the factory 19-inch AMG wheels?
This featured build runs 390 mm front and 360 mm rear rotors with factory 19-inch AMG wheels. Confirm clearance against your exact caliper and wheel setup before ordering, especially on aftermarket wheels.
How long do STOPFLEX carbon ceramic rotors last on the street?
Kept off the track, STOPFLEX carbon ceramic rotors can reach roughly 250,000 to 300,000 km. Real lifespan depends on driving style, pad choice, and how much heat you put through them.
