Brembo 08-13 135i Rear GTS BBK 4 Piston Cast 345x28 2pc Rotor Slotted Type1-Black HA

The 345x28mm two-piece rotor design in this Brembo Big Brake Kit is a key feature, allowing for better heat dissipation and reduced unsprung weight compared to a single-piece rotor. This kit is specifically built for the rear of your 2008-2013 BMW 135i, aiming to significantly improve your braking performance. The four-piston calipers are constructed from cast aluminum, offering a strong yet lightweight housing for the braking components.

This Brembo GTS Big Brake Kit includes slotted rotors, which help to vent gases and dust away from the pad surface. This means more consistent stopping power, especially during repeated hard braking events. The calipers themselves are finished in a sleek black HA (High-Performance Anodized) coating, which not only looks good but also offers a layer of corrosion resistance. Everything you need for the rear axle is included in this kit, making it a comprehensive upgrade for your 135i's braking system.

When installing a kit like this, it's always a good idea to consult the manufacturer's installation guide for specific torque values and procedures. Ensuring proper bedding-in of the new pads and rotors is also crucial for achieving optimal performance and longevity from your new Brembo braking system.