The Build: Cayenne Coupe 9YA Parts List
| Item | STOPFLEX Build Spec |
|---|---|
| Vehicle | Porsche Cayenne Coupe (9YA) |
| Front setup | Akebono 10-piston caliper on a 440mm STOPFLEX carbon ceramic rotor |
| Rear setup | Brembo four-piston braking caliper plus a separate electronic parking brake caliper on a 410mm STOPFLEX carbon ceramic rotor |
| Pads | STOPFLEX low-dust ceramic compound |
| Wheel target | 21-inch (confirm clearance per wheel design) |
| Weight saving | Around 35 kg total off the corners |
| Axle scope | Full front and rear carbon ceramic conversion |
Confirm before you order
This is a full big-brake conversion, not a bolt-on pad swap. Rotor diameter, caliper package, wheel barrel and spoke clearance, and the rear electronic parking brake all have to check out together as one package against your exact car and wheels.
What the Upgrade Actually Does on a 9YA
| STOPFLEX feature | Why it matters on the Cayenne Coupe | What you notice |
|---|---|---|
| Carbon ceramic rotors, about half the weight of same-size steel | The 9YA is a heavy SUV, and big iron rotors pile weight onto the part of the car the suspension works hardest to control. | Lighter steering off-center and a more settled ride over broken pavement. |
| 440mm front rotor with a 10-piston caliper | Curb weight and speed dump a lot of heat into the front brakes on repeated hard stops. | A firmer, more repeatable pedal on long descents and back-to-back stops instead of a soft, fading one. |
| Wider fade tolerance than iron under repeated heat | Towing, mountain roads, and fast highway runs stack heat into the system faster than easy daily driving. | The pedal stays consistent deeper into a hard drive. |
| Low-dust ceramic pads | Cayenne wheels are big and on full display, and iron dust coats them fast. | Wheels that stay clean far longer between washes. |
| Rotors that don't rust | Iron discs surface-rust after rain or a few days parked, which looks rough behind open wheels. | Clean rotor faces that still look sharp after wet weather or time sitting. |
What gets better
- Roughly 35 kg less unsprung and rotating mass across both axles.
- More thermal headroom up front for grades, towing, and repeated stops.
- Much lower brake dust with the matched STOPFLEX pads.
- Rotors that stay rust-free after rain and long parking.
- Rear electronic parking brake function is kept through a separate EPB caliper.
What to confirm first
- Your exact wheels clear the 440mm front package, spokes and barrel.
- Front and rear rotor sizes match this 440mm / 410mm build.
- The rear EPB caliper setup is correct for your car.
- Pad pairing stays with the STOPFLEX low-dust compound for the dust and friction behavior described.
If you're not sure your car matches the spec shown here, send us your details and we'll confirm Porsche Cayenne Coupe 9YA fitment before you order through our Porsche CCB collection.
Build Gallery
Cayenne Coupe 9YA Carbon Ceramic Brake FAQ
Is a 10-piston front brake overkill on a V6 Cayenne Coupe?
No. On a heavy performance SUV, curb weight and heat load matter more than engine output. The bigger front system gives you more thermal headroom and a steadier pedal during repeated hard stops, long downhill grades, or towing.
Does the rear keep the factory electronic parking brake?
Yes. The rear runs a Brembo four-piston braking caliper alongside a separate electronic parking brake caliper, so your factory-style EPB function is retained.
How does this compare with factory Porsche carbon ceramic brakes?
The benefits line up: lower unsprung mass, far better fade resistance under heat, very low dust, and a premium ceramic finish. This is a different path, built around an Akebono front and Brembo rear paired with STOPFLEX carbon ceramic rotors.
Will this fit factory 21-inch wheels?
The 440mm front is built around a 21-inch wheel. Spoke shape and barrel design vary between wheels, so clearance should be confirmed against your exact wheels before you order.
How long do STOPFLEX carbon ceramic rotors last on the street?
For street use with no track time, STOPFLEX rates rotor life at roughly 250,000 to 300,000 km. Real-world life depends on how you drive, pad choice, and conditions.
