The Brembo rear GT big brake kit for 1997–2004 Porsche 986 Boxster S uses a four-piston cast caliper with a 345×28 mm two-piece drilled rotor finished in black. As a vehicle-specific rear upgrade, it pairs multi-piston clamping with a two-piece drilled rotor to help manage heat and deliver consistent braking response on street and track-oriented driving.
Brembo 97-04 986 Boxster S Rear GT BBK 4 Piston Cast 345x28 2pc Rotor Drilled-Black