Brembo 01-06 M3 Rear GT BBK 4 Piston Cast 345x28 2pc Rotor Drilled-Red

This is the Brembo Rear GT Big Brake Kit for the 2001-2006 BMW M3. It's a comprehensive upgrade designed to significantly improve your M3's braking performance, especially under demanding conditions. The kit includes everything you need to replace your stock rear braking system with a much more robust setup, featuring four-piston calipers and larger two-piece rotors.

At the heart of this kit are the Brembo four-piston cast iron calipers, known for their solid construction and ability to handle heat. These are paired with substantial 345x28mm two-piece rotors. The two-piece design helps manage heat and reduces unsprung weight compared to a single-piece rotor. The rotors themselves are drilled, which helps to dissipate heat and gasses, leading to more consistent braking performance, particularly during repeated hard stops. This kit is a substantial upgrade over the factory components, providing increased stopping power and better fade resistance.

When installing a big brake kit like this, it's important to ensure you have the correct tools and follow the manufacturer's instructions carefully. This kit is designed as a direct replacement for the factory rear brake system on the specified M3 models, meaning it should fit right without major modifications. You'll notice a significant difference in pedal feel and stopping capability, making it ideal for track use or spirited driving where consistent braking is crucial.