The Brembo Big Brake Kit for 2006–2008 Z4 M-Coupe and M-Roadster rear applications replaces factory rear hardware with GT four-piston cast calipers and two-piece 345 x 28 mm slotted rotors in silver (Type 3). This rear kit installs as a direct-fit upgrade featuring two-piece rotors and multi-piston calipers to increase rotor size and braking component capability versus the OE rear system.
Brembo 06-08 Z4 M-Coupe/Roadster Rr GT BBK 4 Piston Cast 2pc 345x28 2pc Rotor Slotted Type3-Silver