The Brembo Big Brake Kit for 2015–2018 BMW M3 (excluding carbon-ceramic equipped cars) rear applications features four-piston billet calipers and 380×28 mm two-piece slotted Type 3 rotors with nickel plating. Offered as a rear direct-fit upgrade, it increases rotor capacity and cooling for spirited driving while remaining compatible with non-CC brake systems.
Brembo 15-18 M3 Excl CC Brakes Rr GTR BBK 4Pis Billet 380x28 2pc Rotor Slotted Type3-Nickel