Brembo 08-13 135i Rear GTR BBK 4 Piston Billet 345x28 2pc Rotor Slotted Type3- Nickel

The 345x28mm, two-piece rotor design in this Brembo GTR Big Brake Kit is a key feature, allowing for better heat management and reduced unsprung weight compared to a single-piece rotor. This kit is specifically for the rear of your 2008-2013 BMW 135i, offering a significant upgrade over the factory braking system. The GTR calipers are forged from billet aluminum, making them both strong and lightweight, which is crucial for performance braking where reducing rotational mass is important.

This kit includes Brembo's Type 3 slotted rotors, which are designed to help dissipate heat and gases more effectively than smooth rotors, leading to more consistent stopping power, especially during repeated hard braking. The nickel finish on the rotors not only looks sharp but also offers some corrosion resistance. The four-piston caliper design means more pad surface area is in contact with the rotor, providing increased clamping force and improved braking performance. This is a comprehensive kit designed for enthusiasts looking to maximize their vehicle's braking capabilities.

When installing this kit, you'll want to ensure you have the necessary tools and potentially a helper, as it's a substantial upgrade. It's always a good idea to refer to the manufacturer's installation guide for specific torque values and procedures to ensure proper fitment and function. This kit is a serious investment in your vehicle's performance and safety, offering a noticeable improvement in braking feel and capability.