The Brembo rear GT big brake kit for 2004–2010 BMW 5-Series (excluding xDrive and M5) upgrades the rear with four-piston cast calipers and two-piece 345×28 mm drilled rotors in red. This rear direct-fit kit replaces OEM components with larger rotors and multi-piston calipers to help control heat and provide steadier braking under repeated heavy use.
Brembo 04-10 5-Series (Excl. xDrive/M5) Rear GT BBK 4 Piston Cast 2pc 345x28 2pc Rotor Drilled-Red