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The Brembo GT big brake kit for 2017–2023 BMW 540i upgrades front braking with a six‑piston caliper and 405×34 mm two‑piece slotted rotors. Cast six‑piston calipers in black work with the slotted rotors to aid heat control and sharpen pedal feel during heavy use. The copy focuses on piston count, rotor diameter and two‑piece slotted construction to document fitment and the higher‑capacity braking intent.
Brembo 17-23 540i Front GT BBK 6 Piston Cast 405x34 2pc Rotor Slotted Type1-Black
