A2-156 Girodisc 2pc REAR Brake Rotors (OEM PCCB) AP Racing The A2-145 Girodisc system is

The A2-145 Girodisc system is an upgrade to a two-piece steel rotor and aluminum hat combination as a direct replacement for the C7 Z07's rear carbon-ceramic brake discs

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A2-156 Girodisc 2pc REAR Brake Rotors (OEM PCCB) AP Racing The A2-145 Girodisc system isPORSCHE 991 TURBO & 981 CAYMAN GT4 OEM PCCB This Girodisc system is a 390mm two piece steel rotor and aluminum hat combination, a direct replacement upgrade for the OEM PCCB brakes. The A2 156 will bolt directly to your Porsche and work perfectly with your OEM calipers. There are two main reasons for replacing your PCCB: first, the Girodisc rotors are designed to shed heat more effectively than the original rotors; second, the machined cast iron rotor