2012-2019 Porsche 911 (991) Carrera / S Carbon Ceramic Brake Rotors
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?
Direct Replacement CCB Discs (Retain Factory Calipers) for the 2012-2019 Porsche 911 (991) Carrera / S. Factory rotor specifications and the smallest wheel that clears each trim:
| Trim | Front Rotor (Factory) | Rear Rotor (Factory) | Min. Wheel Size |
|---|---|---|---|
| Carrera/4/T | 330mm | 17" | |
| S/4S | 340mm or 350mm | 330mm or 350mm | 18" |
| PCCB | 350mm or 410mm by MY/package | 350mm or 390mm by MY/package | 21" |
| Carrera/T | 330mm | 17" |
Keep Your Factory Calipers?
Yes — if your front factory calipers are fixed 4-piston or more. The rear axle has no restriction. Cars with 1- or 2-piston floating front calipers should use the Full Upgrade kit (calipers + discs) instead. Discs are built to the factory rotor specs shown above; if you run aftermarket calipers (Brembo, AP Racing, Alcon, Wilwood), we simply confirm the caliper model, pad shape, and rotor dimensions before production.
Spoke profile and offset also affect clearance — confirm your exact wheels before ordering.
What's in the Box
| Item | Details |
|---|---|
| Product type | Direct Replacement CCB Discs (Retain Factory Calipers) |
| CCB rotors | Full-car set by default, built to the factory rotor specification |
| CCB brake pads | Matched ceramic-compatible compound for StopFlex carbon ceramic rotors |
| Brake pad wear sensors | Included; 100% compatible with the OEM wear-sensor system. |
| 7075 aluminum floating rotor hats | Vehicle-specific fitment; custom rotor hat colors available for every Direct Replacement order. |
| Stainless floating hardware | Full-car hardware set |
| Order scope | Default listing is full-car set. Front-only or rear-only orders can be arranged after confirmation. |
Why Carbon Ceramic — and Why StopFlex
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.
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.
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.
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
Carbon ceramic rotors tolerate extreme surface temperature, but they do not remove every heat-management requirement. During repeated hard stops, heat still soaks 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.
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 fit my 991 if it never had PCCB from the factory?
Yes, as long as your front factory calipers are 4-piston or larger, which covers the Carrera, Carrera 4, Carrera S, and 4S with their fixed monobloc calipers. This kit is a Direct Replacement that reuses your factory calipers and bolts carbon-ceramic rotors, pads, hats, and floating hardware in place of your existing setup. You do not need to have started with PCCB. Just confirm your exact trim and factory rotor size against this page — front runs 330mm on Carrera/4/T, 340mm or 350mm on S/4S; rear runs 330mm on Carrera/T and 330mm or 350mm on S/4S — since compatibility is limited to the sizes listed here.
My dealer quoted $20,000-plus to replace worn PCCB rotors. How is this different?
A full four-corner factory PCCB job at a Porsche dealer commonly lands between $20,000 and $35,000 because you are buying complete OEM discs at OEM pricing. This kit replaces only the wear items — the carbon-ceramic discs, pads, hats, and floating hardware — while keeping your original 991 calipers. You get carbon-ceramic performance and OEM rotor sizing without paying for calipers you already own. That is the entire cost gap most 991 owners hit at inspection time.
How do these behave in winter on a cold 911?
Honestly: an untuned cold carbon-ceramic disc bites less than cold iron on the first stops. That is physics, not a defect. We engineered around it on both ends — the low-metallic resin-composite pad compound and the disc's ceramic coating are tuned for cold starts, so cold-car winter feel on your 991 now comes very close to warm summer feel. On the coldest first pull out of the garage, leave a little extra following distance until the front brakes take a set. After that the pedal feels normal.
Will the brake pad wear warning still work on my dash?
Yes. The 991 uses electronic pad wear sensors, and these pads are 100% compatible with the factory wear-sensor system. The stock pad-wear warning keeps functioning normally with no dashboard errors or fault codes. You keep the exact same wear monitoring you had before, so there are no warning-light surprises after installation.
More Contact Information
We’re here to help! Whether you need expert advice on brake setups, have questions about your order, or just want to share feedback, our team is ready to assist you. Reach out via your preferred channel below, or use the inquiry form.
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