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The Brembo GT rear big brake kit for 2001–2006 BMW M3 provides four-piston cast calipers with two-piece 345x28 slotted Type1 rotors in red sized for rear fitment. As a direct rear replacement, this kit increases rotor size and caliper clamping compared with factory parts to improve braking balance and heat control for spirited street driving and track use.
Brembo 01-06 M3 Rear GT BBK 4 Piston Cast 2pc 345x28 2pc Rotor Slotted Type-1-Red
