Brembo 06-12 325i/328i (Excl. xDrive) Rear GT BBK 4 Pist Cast 345x28 2pc Rotor Slotted Type1-Silver

This Brembo GT Big Brake Kit for the rear of your 2006-2012 BMW 325i or 328i (excluding xDrive models) includes everything you need to significantly upgrade your braking system. You get a pair of 4-piston cast aluminum calipers, two 345x28mm two-piece slotted rotors, caliper mounting brackets, and all the necessary hardware to get them installed. This kit is designed to provide a substantial improvement in stopping performance, especially under demanding conditions.

The calipers are forged from aluminum for a strong yet lightweight housing, and they feature a 4-piston design. This means more clamping force is applied to the rotor surface compared to the factory setup, leading to shorter stopping distances and better heat dissipation. The rotors themselves are a two-piece design, with a cast iron friction ring and an aluminum hat. This construction helps reduce weight and allows for better thermal management, as the hat can shed heat more effectively. The Type 1 slots on the rotor surface help to sweep away dust and gas, maintaining consistent pad contact and performance, especially during repeated hard braking. The silver finish on the calipers adds a clean, performance-oriented look behind your wheels.

Installing a big brake kit like this is a significant upgrade that can make a noticeable difference in how your car feels when you brake, particularly if you drive your BMW spiritedly or plan on tracking it. While this kit is designed as a direct bolt-on replacement for the factory rear brake components (excluding xDrive models), it's always a good idea to consult the manufacturer's installation guide for specific torque values and procedures. Ensure you have the correct tools on hand, as brake jobs can sometimes require specialized wrenches or a torque wrench.