The Brembo Big Brake Kit for 1999–2005 330i (excluding xDrive) rear applications replaces rear brakes with GT four-piston cast calipers and two-piece 345 x 28 mm slotted rotors in silver (Type 3). This rear big brake kit installs as a direct-fit swap, providing two-piece rotor construction and multi-piston calipers to increase braking component size and clamping force over the factory rear system.
Brembo 99-05 330i (Excl. xDrive) Rr GT BBK 4 Piston Cast 2pc 345x28 2pc Rotor Slotted Type3-Silver