The Wilwood 03-08 Audi A4 Forged Narrow Superlite 6R Front Big Brake Kit 12.88in (Red) w/ Lines is a high-performance braking system designed for Audi A4 vehicles from 2003-2008. This kit includes two forged narrow Superlite 6R calipers, two 12.88 diameter rotors, and stainless steel brake lines. The calipers feature a red finish for a stylish look and improved corrosion resistance. The rotors are cross-drilled and slotted for increased heat dissipation and improved braking performance. This kit is designed to provide superior braking performance in all conditions and is sure to be an upgrade over the stock brakes.