2008-2015 Mercedes-Benz C-Class / AMG (W204/S204/C204) Carbon Ceramic Big Brake Kit — Brembo GT6 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 2008-2015 Mercedes-Benz C-Class / AMG (W204/S204/C204). This page's exact brake setup:
| Model Years | Front Setup | Rear Setup | Min. Wheel Size |
|---|---|---|---|
| 2008-2015 |
Option 1: Brembo OEM Cadillac CTS-V 6-Piston Caliper — 390 mm rotor Option 2: Brembo GT | M6 6-Piston Caliper — 390 mm rotor Option 3: Brembo GT | S6 6-Piston Caliper — 390 mm rotor |
Option 1: Brembo OEM Cadillac CTS-V 4-Piston Caliper — 360 mm rotor Option 2: Brembo GT | M4 4-Piston Caliper — 360 mm rotor Option 3: Brembo GT | S4 4-Piston Caliper — 360 mm rotor |
20" |
Fitment here is bespoke: brackets, hat offsets, and caliper mounting are engineered for your exact model and trim rather than copied across the platform. Two trims with the same chassis code can still differ in knuckles, hub geometry, and wheel ET clearance — which is why we confirm your trim first, then build the matched system of calipers, pads, rotor hats, floating hardware, and lines for it. Modified knuckles, uprights, or non-factory suspension points require review before ordering.
The 390 mm rotor sets the minimum wheel size at 20" — 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 |
Option 1: Brembo OEM Cadillac CTS-V 6-Piston Caliper — 390 mm rotor OE / Part No.: L 172-2521 · R 172-2522 Option 2: Brembo GT | M6 6-Piston Caliper — 390 mm rotor Option 3: Brembo GT | S6 6-Piston Caliper — 390 mm rotor |
| Rear calipers |
Option 1: Brembo OEM Cadillac CTS-V 4-Piston Caliper — 360 mm rotor OE / Part No.: L 172-2523 · R 172-2524 Option 2: Brembo GT | M4 4-Piston Caliper — 360 mm rotor Option 3: Brembo GT | S4 4-Piston Caliper — 360 mm rotor |
| 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
Any kit order can be personalized: custom caliper colors, a custom caliper logo, and custom rotor hat colors, so the hardware behind your wheels matches the rest of the build.
- Custom caliper color
- Custom caliper logo
- Custom rotor hat color
Why Carbon Ceramic — and Why StopFlex
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.
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.
Winter & Cold-Weather Braking
Winter question, straight answer: untuned ceramic discs bite less when cold. StopFlex optimized the pad compound and the rotor's ceramic coating for cold operation, so cold-start braking in winter feels very close to warm-weather braking. Extra following distance on freezing first stops is still smart; severe-winter daily cars should run Street Spec.
Caliper Overview
Front Caliper
You choose from the Brembo V6 / GT6 / GTS6 6-piston front caliper options, all matched to a 390 mm rotor. The GT6 (Brembo GT | M6) is the reference build here, with six pistons for consistent clamping and a firm pedal that holds up under repeated heavy stops on a heavy AMG or driven C-Class.
Rear Caliper
The rear uses the Brembo V4 / GT4 / GTS4 4-piston caliper options on a 360 mm rotor, adding real rear thermal capacity so the car stays balanced during hard, repeated braking rather than dumping all the work up front.
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 this kit clear my current wheels?
No. The front rotor is 390 mm, so you need at least a 20-inch wheel, and spoke shape matters as much as diameter. Factory C63 AMG 18s and most 18-19 inch setups will not clear the caliper and rotor. Confirm your wheel diameter and inner spoke clearance with us before ordering; we can review your exact wheel against the caliper envelope.
Does this bolt on to any W204 the same way?
No, and we will not claim that. The standard C180 through C350 cars and the C63 AMG do not share identical front knuckle geometry, hub offsets, and wheel clearance, so brackets and rotor-hat offsets are cut for your confirmed trim. Tell us the exact model and build and we engineer the mounting to that car, not to the platform name.
How do these carbon ceramic brakes behave in winter?
A cold carbon-ceramic disc naturally bites a little less than cold iron on the first stops. That is physics, not a fault. We tuned both the pad compound and the disc's ceramic coating for cold starts, so cold-car feel now comes very close to a warm summer pedal. Still, leave a little extra following distance on the first couple of stops on the coldest mornings.
What pads come with the kit and how much heat handle them?
The kit ships with a carbon-ceramic-specific low-metallic resin-composite pad using steel, copper, and aramid fiber, with an average friction coefficient around 0.44 and heat resistance to roughly 750 C with strong anti-fade behavior. On a 390 mm front and 360 mm rear setup that supports repeated hard stops without the fade you get from worn factory iron.
More Contact Information
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