The Brembo rear GT big brake kit for 2008–2014 Subaru WRX STI pairs a four-piston cast caliper with a 345×28 mm two-piece slotted rotor (Type 3) finished in black. Intended as a direct rear replacement, the kit combines multi-piston clamping and a two-piece slotted rotor to help control heat and maintain consistent braking under repeated use.
Brembo 08-14 WRX STI Rear GT BBK 4 Piston Cast 345x28 2pc Rotor Slotted Type3-Black