The Brembo GT big brake kit for 2017–2023 540i front applications replaces stock front brakes with six-piston calipers and two-piece 405×34 mm cast rotors featuring slotted Type 1 faces in red. Offered as a complete front kit, it improves braking performance and pad cleaning while two-piece rotors make servicing and component replacement more convenient.
Brembo 17-23 540i Front GT BBK 6 Piston Cast 405x34 2pc Rotor Slotted Type1-Red