The R1 Concepts slotted brake rotor for 2005–2018 Audi A3 is specified for the rear left position and includes a black slotted braking face as a replacement rotor. Intended to restore the braking surface on that axle for the stated model years, this unit should be ordered per wheel with rear left fitment to ensure proper orientation and compatibility with the described application.
R1 05-18 Audi A3 Rear Left Slotted Black Brake Rotor