The build: what's on this 991.2
| Item | Installed on this 911 991.2 |
|---|---|
| Vehicle | Porsche 911 (991.2) |
| Wheels fitted | 20-inch |
| Caliper layout | Factory six-piston front / four-piston rear retained |
| Front rotor | STOPFLEX 380mm CCB carbon ceramic |
| Rear rotor | STOPFLEX 330mm CCB carbon ceramic |
| Pads | STOPFLEX high-performance ceramic |
| Hardware | Matching bolts and install fasteners |
| Axle scope | Front and rear rotor upgrade, factory calipers kept |
Don't order on wheel size alone. This car runs 20-inch wheels, but diameter doesn't prove clearance. A 380mm front rotor can sit happily inside the barrel while the caliper face still fouls the spokes. Confirm your exact wheel model, spoke clearance, inner barrel clearance, and caliper position before you buy.
What the CCB swap actually changes
| STOPFLEX feature | Why it matters on a 911 | What you notice |
|---|---|---|
| Carbon ceramic rotors, ~half the weight of same-size steel | The 911's whole character lives in how it reacts to small inputs. Weight at the hub fights that. | Lighter steering off-center and a more alert feel through quick left-right transitions. |
| 380mm front / 330mm rear sizing | The front does most of the work under hard braking; the rear-engine layout makes rear stability matter more than on most cars. | Front bite that holds up on a back-road run, with rear balance left where Porsche set it. |
| Wider fade tolerance than iron under repeated heat | Steel rotors saturate with heat during repeated hard stops down a grade or a canyon run. | Pedal feel that stays consistent stop after stop instead of going long when things get hot. |
| Low dust with STOPFLEX pads | Iron dust coats 20-inch wheels fast and bakes on. On a 911 that's a constant cleaning chore. | Wheels that stay clean far longer between washes. |
| Rotors don't rust after rain | Steel rotors surface-rust overnight and look rough through open spokes. | A clean rotor face behind the wheel even after the car sits out wet. |
What gets better
- Lower unsprung and rotating mass front and rear
- Steadier pedal feel during repeated hard braking
- Much less visible brake dust with STOPFLEX pads
- No surface rust on the rotor face after wet weather
- Clean carbon ceramic look filling the 20-inch wheels
What to confirm first
- Exact 991.2 variant and your real wheel model
- Spoke and inner barrel clearance for the 380mm front rotor
- Caliper position relative to the spokes
- Rotor hat offset and centering for clean install
- Pad compound and bedding for your intended use
If you're not sure your car matches the spec shown here, send us your wheel and variant details and we'll confirm Porsche 911 991.2 fitment before you order through our Porsche CCB collection.
Build gallery
FAQ
What brakes were fitted to this Porsche 911 991.2?
This 991.2 got STOPFLEX 380mm front carbon ceramic rotors, STOPFLEX 330mm rear carbon ceramic rotors, STOPFLEX high-performance ceramic pads, and matching install hardware. It keeps the factory caliper layout described in the build.
Why upgrade the 991.2 brakes when the factory setup is already good?
The stock 991.2 brakes are strong on the street. This CCB swap targets the things steel rotors do worst: rotor weight, brake dust, heat saturation under repeated hard stops, and rust after rain. It improves those without changing the factory brake balance.
Do these STOPFLEX rotors fit every 991.2 on 20-inch wheels?
No. Wheel diameter alone doesn't prove clearance. Inner barrel clearance, spoke clearance, caliper position, rotor diameter, and rotor hat offset all have to be checked against your exact wheel before you order.
Can I daily drive this 911 CCB setup?
Yes, once the right pad compound, bedding procedure, wheel clearance, and hardware are confirmed. For daily driving the biggest wins are cleaner wheels, lighter rotors, no rotor rust after rain, and steadier pedal feel.
How much lighter are STOPFLEX carbon ceramic rotors than steel?
STOPFLEX carbon ceramic rotors weigh roughly half what a same-size steel rotor weighs. On a 911 that drop in unsprung and rotating mass is exactly where you feel it, in braking and quick direction changes.
