Brembo 14-15 BMW 428i M-Sport Brakes (F32/ F33) PISTA Rear Race BBK 2pc 345x28x54a 2pc Rotor T3

Brembo is well-known for their high-performance braking systems, and this PISTA Rear Race Big Brake Kit (BBK) is a prime example of their dedication to stopping power. This kit is specifically designed for the 2014-2015 BMW 428i models, including the F32 and F33 chassis, particularly those equipped with the M-Sport package. If you're looking to significantly upgrade your BMW's rear braking performance for track days or spirited driving, this kit offers a substantial improvement over stock components.

This kit features a two-piece rotor design, with each rotor measuring 345mm in diameter and 28mm thick. The rotors are a Type 3 (T3) design, which means they have slots machined into them. These slots help to vent gases and dust away from the pad surface, which can lead to more consistent braking performance, especially under heavy use. The two-piece construction allows for better heat management and can reduce unsprung weight compared to a traditional one-piece rotor. The caliper piston size is 54a, indicating a specific bore size designed to work optimally with the included rotor dimensions and your vehicle's braking system.

When installing a big brake kit like this, it's important to ensure you have the correct tools and follow the manufacturer's installation instructions carefully. This kit is a significant upgrade and is intended for drivers who demand more from their braking system. While this kit focuses on the rear, it's often part of a larger system where front upgrades are also considered for balanced performance. Ensure you consult the full installation guide provided by Brembo for detailed steps and any specific requirements for your BMW 428i.