The Brembo GT front big brake kit for 1999–2005 BMW 330i (excluding xDrive) includes six-piston cast calipers and 355 x 32 mm two-piece slotted rotors in Type-1 black. Marketed as a front axle upgrade, it replaces stock parts with larger rotors and multi-piston calipers to enhance braking modulation and heat capacity for supported 330i applications.
Brembo 99-05 330i (Excl. xDrive) Fr GT BBK 6 Pist Cast 355x32 2pc Rotor Slotted Type1-Black