2014-2016 Porsche Cayman (981) / S / GTS / GT4 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 2014-2016 Porsche Cayman (981) / S / GTS / GT4. Factory rotor specifications and the smallest wheel that clears each trim:
| Trim | Front Rotor (Factory) | Rear Rotor (Factory) | Min. Wheel Size |
|---|---|---|---|
| Base | 315mm | 17" | |
| S/GTS | 330mm | 17" | |
| GT4 | 380mm, 410mm (PCCB) | 380mm, 390mm (PCCB) | 21" |
| Base/S/GTS | 299mm | 16" |
Keep Your Factory Calipers?
Keep them if the front calipers are fixed 4-piston or more — the rear axle qualifies regardless. Front 1- or 2-piston floating calipers rule out the disc-only route; choose the Full Upgrade kit instead. Every set is machined to the factory rotor specs listed above, and aftermarket calipers (Brembo, AP Racing, Alcon, Wilwood) only need the caliper model, pad shape, and rotor dimensions confirmed before we build.
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
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.
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.
Winter & Cold-Weather Braking
Cold facts first: an untuned ceramic disc bites less than iron on a freezing morning — physics, not a defect. StopFlex tuned both the pad compound and the disc's ceramic coating for cold starts, so winter cold-car braking now feels very close to summer. Leave extra margin on the very coldest first stops; severe-climate daily drivers should build 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 Cayman if I don't have the GT4 or PCCB brakes?
Fitment depends on your exact trim and factory rotor size. This page covers the 981 Cayman lineup with front rotors at 315mm (Base), 330mm (S/GTS), and 380mm or 410mm PCCB (GT4); rears run 299mm (Base/S/GTS) and 380mm or 390mm PCCB (GT4). These are Direct Replacement discs that reuse your factory calipers, so the front caliper must be 4-piston or more. If you're on a base Cayman with a smaller single-piston setup up front, this Direct Replacement path won't apply. Send us your VIN and we'll confirm the caliper and rotor size before you order.
How do carbon ceramic rotors behave on a cold Cayman in winter?
Honest answer: an untuned cold carbon-ceramic disc bites a little less than cold iron on the first stop or two. That's physics, not a defect. We tuned around it on the 981 by optimizing both the pad compound and the disc's ceramic coating for cold starts, so winter cold-car feel now comes very close to summer feel. On the coldest first stops, still leave a little extra following distance until the front rotors take heat—then they settle in like normal.
Will the factory brake pad wear warning still work?
Yes. The 981 uses electronic pad wear sensors, and our pads are 100% compatible with that OEM wear-sensor system. Your factory pad-wear warning keeps working exactly as designed, with no dashboard errors or warning lights after installation.
Do I keep my Porsche calipers, and what pads come with the kit?
You keep your factory Cayman calipers—this is a Direct Replacement disc kit, not a big-brake conversion. The box includes carbon-ceramic rotors, hats, floating hardware, and pads matched to the 981's rotor sizes. The pads are a carbon-ceramic-specific low-metallic resin-composite compound with steel, copper, and aramid fiber, with an average coefficient of friction near 0.44 and heat resistance to about 750 °C for strong anti-fade behavior on track days.
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