The R1 Concepts drilled brake rotor for 2004–2009 Audi S4 (rear right) is a black-finished replacement rotor intended for the rear-right wheel. The drilled design corresponds to the listed application and provides a serviceable replacement option to restore correct rotor fitment and maintain compatibility with existing braking components on the supported S4 model years.

R1 04-09 Audi S4 Rear Right Drilled Black Brake Rotor