The Brembo rear GT big brake kit for 2012–2020 Lexus GS350 fits a four-piston cast caliper with a 345×28 mm two-piece slotted rotor (Type 1) in silver. This rear direct-fit kit replaces OE rear components with a multi-piston caliper and two-piece slotted rotor to improve heat management and sustain consistent braking performance across repeated heavy use.
Brembo 12-20 GS350 Rear GT BBK 4 Piston Cast 345x28 2pc Rotor Slotted Type1 -Silver