The Brembo big brake kit for BMW M3 (2015–2018) excluding carbon‑ceramic brake models upgrades the rear with four‑piston cast calipers and two‑piece 380×28 mm rotors. This GT kit uses drilled rotors and a fluorescent yellow finish to aid ventilation and pedal consistency under repeated stops, specified for the M3 rear application without CC brakes.
Brembo 15-18 M3 Excl CC Brakes Rr GT BBK 4Pis Cast 380x28 2pc Rotor Drilled-Fluo. Yellow