The Brembo GT rear big brake kit for BMW M3 (E90/E92/E93, 2008–2013) supplies a four-piston cast caliper and 380×28 mm two-piece slotted rotors Type-3 in silver to replace the factory rear hardware. The slotted rotor pattern supports pad cleaning and consistent contact while the multi-piston caliper increases rear braking authority. Fitment is explicit for 2008–2013 M3 E90/E92/E93 models.
Brembo 08-13 M3 (E90/E92/E93) Rear GT BBK 4 Piston Cast 380x28 2pc Rotor Slotted Type-3-Silver