Brembo 08-13 135i Rear GTS BBK 4 Piston Cast 345x28 2pc Rotor Slotted Type3-Black HA

This Brembo big brake kit for the rear of your 2008-2013 BMW 135i includes everything you need to significantly upgrade your braking system. You'll get a pair of Brembo 4-piston calipers, two-piece 345x28mm slotted rotors, and all the necessary hardware to get them installed. This kit is designed to replace your factory rear brakes, offering a substantial improvement in stopping power and heat management.

The calipers are cast aluminum for a good balance of strength and light weight, and they house four pistons each. These pistons work together to apply even pressure across the brake pad, leading to more consistent and powerful braking. The rotors are a two-piece design, which helps to reduce weight and allows for better thermal expansion compared to a single-piece rotor. They are slotted, meaning they have grooves machined into the surface. These slots help to sweep away dust and gas that can build up between the pad and rotor, keeping your braking performance sharp even under heavy use. The black finish on the calipers and the Type 3 slotting pattern give your car a distinct, performance-oriented look.

Upgrading your brakes with a kit like this is a significant step for any 135i owner looking for improved performance, especially if you plan on tracking your car or driving it hard. It's a well-built system from a respected name in braking technology. Make sure to follow the manufacturer's installation instructions carefully, as proper bedding-in procedures are crucial for optimal performance and longevity of the brake components.