The Brembo GTS rear big brake kit for 2006–2010 BMW M5 and M6 provides a four-piston cast caliper with 380 x 28 mm two-piece slotted rotors in a Type-1 black finish. Sold as a rear axle assembly, this kit upgrades braking modulation and thermal capacity compared with standard components. It includes rotors and four-piston calipers sized for direct rear fitment.
Brembo 06-10 M5/06-10 M6 Rear GTS BBK 4 Piston Cast 380x28 2pc Rotor Slotted Type1-Black HA