Brembo 08-13 135i (E81/E82/E88) Rear GT BBK 4 Piston Cast 345x28 2pc Rotor Slotted Type-1-Red

This Brembo GT Big Brake Kit is specifically for the rear of your 2008-2013 BMW 135i, covering E81, E82, and E88 chassis codes. It's designed to significantly improve your braking performance, offering more stopping power and better heat management than the factory setup. If you're looking to upgrade your 135i for track days, spirited driving, or just want the confidence of a more robust braking system, this kit is a serious consideration.

At the heart of this kit are the Brembo 4-piston calipers, cast from durable materials for strength and reliability. These calipers work with substantial 345x28mm two-piece rotors. The rotors feature a slotted design, which helps to vent gases and dust away from the pad surface. This venting action is crucial for maintaining consistent braking performance, especially under heavy use, as it prevents the buildup of heat and contaminants that can lead to fade. The two-piece rotor construction also helps to reduce unsprung weight and manage heat more effectively compared to a solid, one-piece rotor.

Installing a big brake kit like this is a notable upgrade that can change the feel and capability of your vehicle. It's a comprehensive package designed to work together as a system, ensuring that the calipers, rotors, and pads are all optimized for maximum performance. When considering this kit, remember that it's a significant modification, and it's always a good idea to consult the manufacturer's installation guide for specific details and any additional components that might be recommended for a complete and safe installation.