Brembo 08-17 S5/09-16 S4 Rear GTS BBK 4 Piston Cast 380x28 2pc Rotor Drilled-Black HA

If you're looking to significantly improve the stopping power and heat management of your Audi S5 or S4, this Brembo rear Big Brake Kit is a serious consideration. This kit is designed to handle the demands of spirited driving and track use, offering a substantial upgrade over the factory braking system. It's all about getting more consistent performance when you need it most, especially during repeated hard stops.

At the heart of this kit are the robust 4-piston calipers, which provide increased clamping force over smaller factory calipers. These are paired with large 380x28mm two-piece rotors. The two-piece design helps manage heat more effectively, as the aluminum hat can dissipate thermal energy away from the braking surface. The rotors themselves are drilled, which helps to vent gases and moisture away from the pad surface, contributing to a more consistent feel and improved wet-weather performance. This particular kit comes with black calipers and drilled rotors, offering a distinct look behind your wheels.

Installing a big brake kit like this is a comprehensive upgrade. It's designed to be a direct fit for the specified Audi models, meaning it bolts on without requiring extensive modifications. You'll notice a significant difference in pedal feel and fade resistance, especially during demanding driving conditions. This kit is a well-built solution for enthusiasts who prioritize braking performance and reliability.