Brembo 11-12 1M Rear GT BBK 4 Piston Cast 380x28 2pc Rotor Slotted Type-3-Black

Brembo is well-known for their high-performance braking systems, and this GT Big Brake Kit (BBK) for the rear of your 2011-2012 1 Series M is a prime example of their expertise. This kit is designed to significantly improve your car's stopping power and heat management, crucial for spirited driving and track use. It replaces your factory rear brakes with a much more robust setup that can handle the demands of serious performance.

At the heart of this kit are the 4-piston cast aluminum calipers, which offer increased clamping force over stock. These calipers work with substantial 380x28mm two-piece rotors. The rotors feature Brembo's Type-3 slotting pattern, which helps to keep the pad surface clean and dissipate heat and gases more effectively, leading to more consistent braking performance, especially under heavy use. The two-piece design also helps to reduce unsprung weight and manage heat transfer between the rotor and the hub assembly.

This kit includes everything you need to upgrade your rear braking system. You'll find the calipers, the two-piece slotted rotors, and all the necessary mounting hardware and brake lines to complete the installation. While this is a significant upgrade, it's designed as a direct fit for the specified vehicle, meaning no major modifications are typically required for installation, though professional installation is always recommended for complex brake systems like this.