The R1 Concepts Geo-Carbon drilled-and-slotted rotor is a direct-fit replacement with drilled holes and slots designed to help control heat and sustain pad contact under repeated braking. This rotor fits 2005–2013 Audi A3 rear-right applications and installs as the rear-right unit, matching the original equipment mounting for the listed A3 model years.
R1 05-13 Audi A3 Rear Right Drilled & Slotted Geo-Carbon Rotor