Brembo 08-17 S5/09-16 S4 Rear GTS BBK 4 Piston Cast 380x28 2pc Rotor Slotted Type3-Black HA

The 380x28mm, two-piece rotor design on this Brembo big brake kit is a key feature for managing heat during hard braking. This kit is specifically built for the rear of your 2008-2017 Audi S5 or 2009-2016 Audi S4, aiming to significantly improve your car's stopping power and feel. When you're pushing your car hard, whether on the track or just enjoying spirited driving, consistent braking performance is crucial, and this kit is designed to deliver that.

At the heart of this kit are the four-piston calipers, which offer more clamping force than stock, working in tandem with the large 380x28mm rotors. These rotors are slotted with Brembo's Type 3 pattern, which helps to vent gases and heat away from the pad surface, maintaining a strong and consistent bite. The two-piece construction allows the rotor to expand and contract more freely with temperature changes, reducing the risk of warping and ensuring a more stable contact patch. The cast iron construction of the rotor hat and the caliper bodies means they are well-built to handle the stresses of repeated braking cycles.

Installing a big brake kit like this is a substantial upgrade, and it's important to ensure you have the right components. This kit includes the calipers, rotors, and necessary hardware to get them mounted. While it's designed as a direct fit for the specified S5 and S4 models, always refer to the manufacturer's installation instructions for detailed guidance. The result is a more responsive pedal and greater confidence when you need to slow down quickly.