Brembo 11-12 1M Rear GT BBK 4 Piston Cast 345x28 2pc Rotor Slotted Type-3-Silver

The cast iron calipers in this Brembo GT Big Brake Kit are built to handle the heat generated during aggressive driving. This kit is specifically for the rear of the 2011-2012 BMW 1M, offering a significant upgrade over the factory braking system. The 4-piston calipers, combined with 345x28mm two-piece rotors, are designed to provide more consistent and powerful braking performance when you need it most.

This kit features Brembo's Type-3 slotted rotors. The slots are machined into the rotor surface to help sweep away dust and gas that can build up between the pad and rotor, which helps maintain a strong, consistent grip. The two-piece rotor design allows the rotor to expand and contract more freely with temperature changes, reducing the risk of warping and improving overall rotor life. The calipers themselves are a robust 4-piston design, providing increased clamping force over smaller factory calipers.

When installing a big brake kit like this, it's important to ensure you have adequate clearance for the larger calipers and rotors within your wheels. This kit is a comprehensive upgrade for the rear of your 1M, aiming to provide a noticeable improvement in braking feel and performance for track days or spirited driving. Refer to the manufacturer's installation instructions for detailed guidance.