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

This Brembo Rear GT Big Brake Kit (BBK) is designed for the 1987-1991 Porsche 928 S4 and GT models. You'll receive a complete rear braking upgrade, including four-piston calipers, two-piece 328x28mm slotted rotors, and all the necessary hardware to get them installed. This kit is a substantial upgrade over the factory rear brakes, aiming to improve stopping power and heat management for spirited driving or track use.

The calipers in this kit are cast aluminum, housing four pistons each to provide more clamping force than stock. They work in conjunction with the two-piece rotors, which feature a 328mm diameter and a 28mm thickness. The rotors are slotted, a design that helps to sweep away dust and gas buildup from the pad surface, maintaining consistent braking performance even under heavy use. The two-piece construction allows the rotor and hat to expand and contract independently, which can help reduce the risk of rotor warping under extreme heat. Brembo is well-known for its high-performance braking components, and this kit represents their commitment to providing robust solutions for demanding applications.

When installing a big brake kit like this, it's important to ensure you have the correct tools and follow the manufacturer's instructions carefully. While this kit is designed to fit the specified Porsche 928 models, it's always a good idea to confirm compatibility with your specific vehicle's wheel size to ensure proper clearance. This upgrade is a significant step towards enhancing the overall braking capability of your 928.