Girodisc Audi 356mm Rear RotorsThese GiroDisc 2 piece rotors are a direct replacement for the 356x22mm rear rotors on Audi C7 S6 S7 RS6 RS7, as well as others. Our 2 piece, fully floating assemblies help shed unsprung weight and rotating mass from the front axle of the vehicle. The rotor rings are machined from a proprietary casting made of high carbon iron formulated to GiroDiscs specifications. This superior metallurgy results in a rotor that holds up better, and the 48 curved