The Brembo rear GT Big Brake Kit combines cast 4‑piston calipers with two-piece 345×28 mm slotted rotors in a Type 3 pattern painted red to aid cooling and pad contact consistency. It offers a direct-fit rear braking upgrade for drivers seeking more controlled stopping. Source fitment references 05-1ster/06-12 Cayman rear applications for this kit.
Brembo 05-1ster/06-12 Cayman Rear GT BBK 4 Piston Cast 345x28 2pc Rotor Slotted Type3-Red