Brembo 87-91 928 S4/GT Rear GT BBK 4 Piston Cast 2pc 328x28 2pc Rotor Slotted Type-1-Black

Brembo is a name synonymous with high-performance braking systems, and this Rear GT Big Brake Kit (BBK) continues that legacy. Designed for the 1987-1991 Porsche 928 S4 and GT models, this kit is for owners looking to significantly upgrade their rear braking capabilities. It replaces your factory components with a robust, multi-piston setup that offers improved stopping power and heat management, crucial for spirited driving or track use.

At the heart of this kit are the 4-piston cast aluminum calipers, known for their solid construction and ability to apply consistent pressure across the rotor surface. These calipers work in tandem with the 2-piece, 328x28mm rotors. The rotors feature a slotted design, which helps to vent gases and dust away from the pad surface, maintaining optimal friction and preventing fade during heavy braking. The 2-piece construction allows for better thermal management, as the aluminum hat can dissipate heat independently from the iron friction ring, reducing the risk of warping.

This kit includes everything needed to perform the upgrade, ensuring a direct fit for the specified 928 models. The black finish on the calipers adds a subtle, performance-oriented aesthetic to your vehicle's rear end. When installing a big brake kit, it's always a good idea to consult the manufacturer's installation guide to ensure all components are torqued to spec and properly seated for optimal performance and safety.