The Wilwood AERO6 Front Kit 15.00in BBK - 08-12 Audi A4/A5/S5 - Drilled & Slotted Rotor is a performance brake kit designed for the 2008-2012 Audi A4, A5, and S5 models. This kit includes Wilwood's AERO6 Big Brake Front Kit, which features lightweight aluminum calipers with six-piston design for maximum braking performance. The kit also includes 15.00in diameter drilled and slotted rotors for increased heat dissipation and improved brake response. This kit is engineered to provide maximum performance and is an ideal upgrade for any Audi A4, A5, or S5.