The Brembo GTR front big brake kit for 2017–2023 BMW 540i outfits the front with 6‑piston billet calipers and 405×34 mm two‑piece Type 1 slotted rotors finished in nickel. Intended as a direct vehicle upgrade, it improves pedal feel and heat dissipation for spirited driving, while the two‑piece rotor layout aids maintenance by allowing replacement of worn rotor surfaces without swapping the entire assembly.
Brembo 17-23 540i Front GTR BBK 6 Piston Billet 405x34 2pc Rotor Slotted Type1-Nickel