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The Brembo big brake kit for 2012–2014 BMW 328i M-Sport (excluding xDrive) rear applications pairs four-piston billet calipers with 345x28mm two-piece drilled nickel rotors. This rear GTR BBK targets M-Sport braking setups and uses drilled rotor surfaces for heat management and nickel plating for corrosion protection. It’s a direct-fit upgrade emphasizing stronger rear stopping and rotor serviceability.
Brembo 12-14 328i MSport Brakes Excl xDrive Rr GTR BBK 4Pis Billet 345x28 2pc Rtr Drill-Nickel
