The Brembo GTS big brake kit fits 2017–2023 BMW 540i front applications and includes six-piston calipers with two-piece 405×34 mm slotted Type‑3 rotors in black. It’s aimed at improving braking consistency and thermal management during aggressive use. The cast calipers and replaceable rotor faces simplify upkeep and help preserve braking performance over time.
Brembo 17-23 540i Front GTS BBK 6 Piston Cast 405x34 2pc Rotor Slotted Type3-Black HA