The Brembo GT rear big brake kit for 2015–2018 BMW M3 (excludes carbon-ceramic brake-equipped cars) upgrades the rear with a four-piston cast caliper and 380×28 mm two-piece rotors sized for direct replacement. This drilled rotor variant is finished in black as specified, provided to match the listed rear application and excluded brake configurations.
Brembo 15-18 M3 Excl CC Brakes Rr GT BBK 4Pis Cast 380x28 2pc Rotor Drilled-Black