Brembo 15-18 M3 Excl CC Brakes Rr GT BBK 4Pis Cast 380x28 2pc Rotor Slotted Type3-White

Cast aluminum calipers, like those found in this Brembo GT Big Brake Kit, are chosen for their strength-to-weight ratio, helping to reduce unsprung mass for improved handling. This rear kit is specifically designed for the 2015-2018 BMW M3 models, excluding those with Carbon Ceramic brakes, and features a 4-piston caliper design paired with 380x28mm two-piece rotors. The Type 3 slotted rotor surface is a key feature, engineered to help vent gases and heat away from the pad surface, which is crucial for maintaining consistent stopping power during aggressive driving or track use.

The two-piece rotor construction offers advantages in thermal management and weight reduction compared to traditional single-piece rotors. The hat section is typically made from a lighter material, like aluminum, and is designed to allow for expansion and contraction of the rotor ring without inducing stress. This Brembo kit includes everything needed for installation, ensuring a direct fit for the intended M3 models. The calipers are finished in white, adding a distinct visual upgrade to your vehicle's wheel well.

When installing a big brake kit like this, it's important to ensure that your vehicle's brake fluid is fresh and properly bled. This kit is a significant upgrade over the factory braking system, and it's designed to work as a complete package. While this kit is a substantial performance enhancement, always refer to the manufacturer's installation guide for specific details and torque specifications to ensure proper setup.