The R1 Concepts drilled-and-slotted black brake rotor for 1990–1991 Audi 90 Quattro front right applications is a position-specific replacement rotor featuring a drilled and slotted face to assist heat control and pad cleaning. Finished in black, it’s intended for shoppers replacing a worn front-right rotor on the specified 90 Quattro years and restores the braking surface at that position.
R1 90-91 Audi 90 Quattro Front Right Drilled & Slotted Black Brake Rotor