The Brembo rear GT big brake kit for 2014 and later Infiniti Q50/Q50S (excluding AWD) rear applications includes 4‑piston cast calipers and 380×28 mm two‑piece drilled rotors finished in silver. The listing identifies the rear GT configuration pairing cast 4‑piston calipers with two‑piece drilled rotors and specifies the silver finish for those Q50 model years.
Brembo 14+ Q50/Q50S (Excl. AWD) Rear GT BBK 4 Piston Cast 380x28 2pc Rotor Drilled-Silver