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

The 380x28mm two-piece rotors on this Brembo GT Big Brake Kit are cast iron, chosen for their ability to handle heat and resist warping under heavy use. This kit is designed to significantly upgrade the braking performance of your Audi S5 (2008-2017) or S4 (2009-2016), offering a substantial improvement over the factory setup.

At the heart of this kit are the four-piston calipers, which apply more even pressure across the larger rotor surface. This increased clamping force, combined with the vented and drilled two-piece rotors, helps dissipate heat more effectively. The drilling pattern on the rotors aids in gas and moisture expulsion, ensuring consistent braking performance even during repeated hard stops. The cast iron construction of the rotors is a practical choice for durability and heat management, making this kit a solid option for drivers looking for a noticeable improvement in their vehicle's stopping ability.

When installing a big brake kit like this, it's important to ensure all components are properly seated and torqued according to the manufacturer's specifications. This kit is a comprehensive upgrade, aiming to provide a more responsive and powerful braking experience for your S5 or S4.