Brembo 06-08 Z4 M-Coupe/Roadster Rear GT BBK 4 Piston Cast 345x28 2pc Rotor Slotted Type1-Black

The cast aluminum housing for the 4-piston calipers in this Brembo GT Big Brake Kit is a key detail. It's chosen for its strength and ability to manage heat, which is crucial for a high-performance braking system designed for the 2006-2008 BMW Z4 M-Coupe and Roadster. This kit replaces your rear braking components with a substantial upgrade, featuring 345x28mm two-piece rotors that are slotted to help clear dust and gas, improving consistent stopping power under demanding conditions.

Brembo's GT BBK is built for drivers who push their vehicles. The 4-piston calipers offer increased clamping force over stock, working in harmony with the larger, vented rotors. The two-piece rotor design helps reduce unsprung weight and allows for better thermal management compared to a single-piece rotor. The Type 1 slotting pattern on the rotors is specifically chosen to help keep the pad surface clean and reduce the risk of glazing, ensuring reliable performance lap after lap or during spirited driving.

This kit is a comprehensive solution for significantly improving your Z4 M's braking performance. It includes everything needed to install the calipers and rotors, transforming your car's stopping capability. When installing, ensure you follow Brembo's specific instructions for proper caliper mounting and rotor seating to get the most out of this advanced braking system.