The Brembo GT front big brake kit for 2017–2023 BMW 540i pairs a six‑piston caliper with 405x34 mm two‑piece cast drilled rotors finished in red. Built for front-axle use on the 540i, the kit specifies the rotor diameter, thickness and drilled pattern along with six‑piston calipers to provide a substantial braking upgrade and a red visual accent that matches the product description.
Brembo 17-23 540i Front GT BBK 6 Piston Cast 405x34 2pc Rotor Drilled-Red