The Brembo GT Big Brake Kit for 2008–2013 BMW 128i and 2008–2013 135i installs six-piston front calipers with two-piece 355x32 mm cast rotors featuring drilled faces in black. This front axle kit expands piston area and rotor size to handle higher braking demands and aid heat dissipation, delivered as a coordinated caliper-and-rotor upgrade tailored to those model years.
Brembo 08-13 128i/08-13 135i Front GT BBK 6 Piston Cast 355x32 2pc Rotor Drilled-Black