Brembo 15-18 M3 Excl CC Brakes Rr GT BBK 4Pis Cast 380x28 2pc Rotor Slotted Type1-Black

This is the Brembo Rear GT Big Brake Kit for the 2015-2018 BMW M3, specifically for models excluding the Carbon Ceramic (CC) option. It's a comprehensive upgrade designed to significantly improve your M3's braking performance, offering more stopping power and better heat management for spirited driving or track use. The kit features robust 4-piston calipers and large 380x28mm two-piece rotors, providing a solid foundation for enhanced braking.

The calipers are cast from high-strength aluminum, a material chosen for its ability to remain rigid under heavy braking loads while keeping weight down. Inside those calipers are 4 pistons, which distribute clamping force evenly across the brake pad surface, leading to more consistent and powerful braking. The rotors are a two-piece design, meaning the aluminum hat is separate from the iron friction ring. This design helps reduce weight and allows the iron ring to expand and contract more freely with heat, which can prevent rotor warping. These rotors are also slotted with Brembo's Type 1 pattern in black, which helps to sweep away dust and gas that can build up between the pad and rotor, maintaining optimal friction and cooling.

This kit is a substantial upgrade for drivers who push their M3 hard. It's designed to be a direct fit for the specified models, simplifying installation. You'll notice a significant difference in pedal feel and fade resistance during demanding driving conditions. Ensure you have adequate clearance within your wheels for the larger caliper and rotor assembly; Brembo typically provides wheel fitment templates for their kits.