Brembo 04-08 S4/06-08 A4 Rear GT BBK 4 Piston Cast 2pc 345x28 2pc Rotor Slotted Type1-Red

Brembo is well-known for making high-performance braking components, and this Rear GT Big Brake Kit is a prime example of their expertise. If you're looking to significantly upgrade the stopping power on your 2004-2008 Audi S4 or 2006-2008 Audi A4, this kit is designed to do just that. It replaces your factory rear braking system with a more robust setup that can handle more demanding driving conditions.

This kit features a set of four-piston calipers, which offer more clamping force than typical two-piston calipers. These calipers work with substantial 345mm by 28mm two-piece rotors. The two-piece design helps manage heat more effectively by allowing the rotor and hat to expand independently, reducing the risk of warping. The rotors themselves are slotted, which helps to clear out brake dust and gases, maintaining consistent contact between the pad and rotor for improved braking performance, especially during repeated hard stops. The calipers come finished in a striking red color, adding a visual upgrade to your vehicle's appearance.

When installing a big brake kit like this, it's important to ensure you have the correct supporting components. While this kit includes the calipers and rotors, you'll want to confirm you have compatible brake pads and brake lines to get the most out of this upgrade. Refer to the manufacturer's installation instructions for specific details on fitment and any additional parts that may be recommended.