Girodisc VW Golf R (Mk8), Audi 8Y S3 Front RotorsThese GiroDisc 2 piece rotors are a direct replacement for the front rotors on the Mk8 Golf R and 8Y S3. 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 steel formulated to GiroDisc's specifications. This superior metallurgy results in a rotor that holds up better, and the 72 curved vanes act as a