The R1 Concepts drilled-and-slotted black brake rotor for 1990–1991 Audi 90 Quattro front left applications is a position-specific replacement rotor with a drilled and slotted face to help manage heat and clear pad residue. Finished in black, it’s intended for owners replacing a worn front-left rotor on those 90 Quattro years and provides a focused like-for-like replacement for that wheel position.
R1 90-91 Audi 90 Quattro Front Left Drilled & Slotted Black Brake Rotor