The Brembo Rear GT big brake kit for 2011–2012 BMW 1M is a four-piston cast rear brake package that replaces the stock rear hardware to offer firmer, more consistent stopping and an eye-catching finish. It uses 345×28 mm two-piece slotted Type-1 rotors matched to cast four-piston calipers finished in yellow for a strong visual presence at the rear.
Brembo 11-12 1M Rear GT BBK 4 Piston Cast 345x28 2pc Rotor Slotted Type-1- Yellow