Lock The Wilwood 03-08 Audi A4 Forged Narrow Superlite 6R Front Big Brake Kit 12.88in Rotor Dia (Red) w/ Line Lock is an upgrade for your vehicle's braking system. This kit features a forged billet aluminum body with a 12.88 inch rotor diameter for superior stopping power. The kit also includes a line lock feature for maximum braking control. The red finish adds an aggressive look to your vehicle, making it stand out from the crowd. This kit is perfect for those looking to upgrade their braking system and add a unique look to their vehicle.