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The Brembo Big Brake Kit for 2011–2012 BMW 1M rear upgrades the rear with four-piston billet calipers and two-piece 345×28 mm slotted Type 3 rotors in a nickel-plated finish. This rear-specific kit is specified for 1M applications and includes billet 4‑piston calipers and matching two‑piece rotors to provide a direct-fit upgrade that refreshes the rear braking hardware without complex changes.
Brembo 11-12 1M Rear GTR BBK 4 Piston Billet345x28 2pc Rotor Slotted Type-3- Nickel Plated
