A2-156 Girodisc Porsche 390mm Rear Rotors (OEM PCCB)

Girodisc Porsche 390mm Rear Rotors Upgrade your Porsche’s braking system with Girodisc’s 390mm rear iron rotors, designed as a direct replacement for OEM PCCB (carbon-ceramic) discs. This conversion provides improved heat capacity, consistent braking performance, and drastically lower maintenance costs—all while maintaining factory fitment and ABS compatibility. Direct Iron Replacement for Porsche PCCB Rotors The Girodisc system bolts directly to the car and works seamlessly with OEM calipers and pads. Each rotor features a CNC-machined 6061-T6 aluminum hat and Girodisc’s proprietary high-carbon cast iron friction rings, all made in the USA. The floating two-piece design allows for controlled expansion under heat, preserving pad contact and consistent pedal feel. The curved vane design acts as a centrifugal pump, pulling cooling air through the disc for maximum thermal efficiency during hard use. Features • Direct replacement for OEM Porsche PCCB 390mm rear rotors• Billet 6061-T6 alum