The build: vehicle and parts list
| Item | Specification |
|---|---|
| Vehicle | Porsche Cayenne (92A / 958) |
| Front setup | Akebono 10-piston caliper with 420mm STOPFLEX carbon ceramic rotor |
| Rear setup | Brembo 4-piston caliper with 380mm STOPFLEX carbon ceramic rotor |
| Pads | STOPFLEX low-dust ceramic compound, front and rear |
| Weight saved | About 30 kg total versus the factory iron setup |
| Wheel requirement | 20-inch wheels minimum, clearance check recommended |
| Scope | Full front and rear carbon ceramic conversion |
Read this before you order
This isn't a pad-and-rotor refresh. It's a big-brake conversion built around oversized rotors and large fixed calipers, and it needs 20-inch wheels at minimum. The fit is tight, so treat a wheel-clearance check as mandatory rather than optional, especially if you're running aftermarket wheels.
What the upgrade does for the Cayenne
| STOPFLEX feature | Why it matters on the Cayenne 92A | What you notice |
|---|---|---|
| Akebono 10-piston front caliper + 420mm rotor | The Cayenne is heavy and fast, so the front axle eats most of the braking heat. A bigger fixed caliper and large rotor add pad area and thermal headroom. | Firmer pedal and stops that don't go soft on a long descent or back-to-back from speed. |
| Carbon ceramic rotors, about half the weight of steel | Rotor mass is both unsprung and rotating, the worst place to carry weight on a tall SUV. | Sharper turn-in and a suspension that settles quicker over broken pavement. |
| Low-dust STOPFLEX pads | Factory-style pads cake Cayenne wheels in black dust fast. | Wheels that stay clean far longer between washes. |
| Rust-free rotor faces | Iron rotors surface-rust after rain or a wash and look rough behind open wheels. | Clean rotor faces that still look right years in. |
| Heat-stable friction (about 0.3μ at 900°C) | Repeated hard stops on a heavy vehicle drive rotor temps high. | Consistent bite through a mountain road instead of fade. |
| Normal cold bite to around -20°C | A daily SUV has to stop well on the first press of a cold morning. | Predictable braking from the very first stop, not just once warm. |
What gets better
- Firmer, more linear pedal than the factory floating-caliper feel
- Better heat tolerance for long grades and repeated heavy stops
- Around 30 kg less brake weight, most of it unsprung and rotating
- Far less brake dust, so wheels stay clean
- Rotors that don't rust and a street life of roughly 250,000 to 300,000 km
What to confirm first
- Wheel size: 20-inch minimum, and the fit is tight
- Spoke shape and barrel profile, not just diameter, on aftermarket wheels
- That you actually want a big-brake conversion, not a routine service replacement
- Front and rear scope matches what you're after
If you're not sure your car matches the spec shown here, send us your details and we'll confirm Cayenne 92A fitment and 20-inch wheel clearance before you order through our Porsche CCB collection.
Build gallery
FAQ
Why run Akebono 10-piston front calipers on a Cayenne 92A?
The Cayenne is a heavy, quick SUV, so the front brakes do most of the work and take most of the heat. A 10-piston fixed caliper spreads clamping load over a bigger pad and a stiffer body, and paired with a 420mm STOPFLEX carbon ceramic rotor it gives firmer, more repeatable stops when you load the brakes hard.
Can I daily drive this carbon ceramic setup?
Yes. It's built as a street upgrade. STOPFLEX carbon ceramic rotors don't rust after rain or a wash, and with STOPFLEX pads the first cold stop of the morning behaves normally, so the brakes feel predictable in everyday driving.
Will this clear factory 20-inch wheels?
Twenty inches is the minimum wheel size for this build and the fit is tight. Wheel diameter alone doesn't settle it, since spoke shape and barrel profile vary, so confirm clearance with a template before you order, especially on aftermarket wheels.
How much brake dust does it make?
Very little when run with STOPFLEX pads, compared with typical factory iron-brake pads. Your wheels stay cleaner and you'll see far less black dust building up between washes.
How long do STOPFLEX carbon ceramic rotors last on the street?
For street use that never sees a track, STOPFLEX puts rotor life in the range of roughly 250,000 to 300,000 km. Real-world life depends on how you drive, your pad choice, and operating conditions.
