The Build: Vehicle & Parts
| Item | Specification |
|---|---|
| Vehicle | Porsche Cayenne Coupe (9Y3) |
| Front setup | Akebono 10-piston caliper + 440mm STOPFLEX carbon ceramic rotor |
| Rear setup | Brembo 4-piston caliper + 410mm STOPFLEX carbon ceramic rotor |
| Pads | STOPFLEX low-dust ceramic compound, front and rear |
| Rotor construction | STOPFLEX long-fiber carbon ceramic, crackle-texture ceramic coating |
| Approx. weight saved | Around 32 kg total versus the iron setup |
| Scope | Full front and rear carbon ceramic conversion |
Confirm this first
This is a big front package. A 440mm rotor and a 10-piston caliper need real wheel-clearance verification, and inner barrel and spoke shape matter as much as wheel diameter. Check your exact wheel design before ordering, not just the size stamped on the tire.
What the Upgrade Does for the Cayenne
| STOPFLEX feature | Why it matters on the 9Y3 | What you notice |
|---|---|---|
| 440mm front rotor + Akebono 10-piston caliper | The Cayenne Coupe is heavy and quick, so the front axle absorbs most of the heat. More rotor and more pistons mean more pad area and a bigger thermal reserve. | A firmer, more repeatable pedal when you're hauling it down from highway speed or running a long grade. |
| Carbon ceramic vs. iron under heat | Iron discs heat-soak and start to fade after repeated hard stops. Carbon ceramic holds its friction far better; tested rotor surface friction can still sit around 0.3μ at 900°C. | The brakes feel the same on the tenth stop as the first, with no long-pedal warning that the iron setup is cooked. |
| Roughly half the rotor weight of steel | Big steel rotors pile weight onto each corner. Cutting that drops unsprung and rotating mass on a vehicle that already carries a lot of curb weight. | Cleaner suspension reaction over rough pavement and steering that feels a touch lighter on turn-in. |
| Low-dust pads + non-rusting rotors | Factory performance pads coat big SUV wheels in dust, and iron rotors flash orange after a rainy week parked. | Wheel faces stay clean between washes, and the rotor hats keep their finish instead of streaking rust. |
| Long-fiber carbon ceramic construction | Street-driven CCB has to last, not just survive a track weekend. Long-fiber build supports a long service life off-track. | STOPFLEX rates roughly 250,000–300,000 km of street life, so you're not chasing rotor replacements. |
What gets better
- More thermal headroom up front for highway-speed and downhill stops.
- Lower unsprung mass at each corner for sharper ride and steering feel.
- Far less brake dust on the wheels when paired with STOPFLEX pads.
- Rotors that don't rust after rain, so the brakes stay clean-looking.
- Normal cold bite on the first stop, even in deep winter cold.
What to confirm first
- Your exact wheel design clears the 440mm front rotor and 10-piston caliper.
- You want the matched front-and-rear setup, not just bigger fronts, for balanced pedal feel.
- Your priorities are heat resistance, low dust, clean looks, and lower weight in street use.
- The rear pairing — Brembo 4-piston with the 410mm rotor — suits how you drive.
If you're not sure your car matches the spec shown here, send us your wheel and build details and we'll confirm Porsche Cayenne Coupe (9Y3) fitment before you order through our Porsche CCB collection.
Build Gallery
FAQ
Why run Akebono 10-piston front calipers on a Cayenne Coupe?
The 9Y3 is a heavy SUV that builds speed fast, so the front axle does most of the braking work. A 10-piston fixed caliper spreads clamping force over a longer pad and adds thermal capacity. Paired with the 440mm STOPFLEX carbon ceramic rotor, it gives the front end a much bigger heat reserve than the factory iron setup.
Is this carbon ceramic setup okay for daily driving?
Yes. This is built as a street-focused package. STOPFLEX carbon ceramic rotors do not rust after rain, and with STOPFLEX pads cold braking stays normal on the first stop, even down around -20°C, so the car behaves the way you expect every morning.
What actually gets better versus the factory iron brakes?
Lower unsprung weight at each corner, more resistance to fade on long downhill runs, far less brake dust when paired with STOPFLEX pads, and rotors that stay clean because they don't rust. On a vehicle this heavy, dropping rotor weight can also sharpen steering response and ride composure.
Will this clear my factory wheels?
You have to confirm it. This is a large front package built around a 440mm rotor and a 10-piston caliper, so clearance depends on wheel diameter and the shape of the inner barrel and spokes, not diameter alone. Send us your exact wheel before ordering and we'll check it.
Does a CCB upgrade cut long-term maintenance?
For a street-driven Cayenne, it can. STOPFLEX rates street-use rotor life at roughly 250,000 to 300,000 km when the car isn't tracked, which can stretch the gap between rotor replacements compared with conventional steel discs.
