The R1 Concepts drilled-and-slotted rear left brake rotor for 1999–2002 Audi A6 Quattro is a black-finished replacement listed for that application. The drilled-and-slotted surface provides a distinctive appearance while aligning with the rotor profile required by the braking system, making it a sensible option when replacing worn rear rotors to reestablish correct pad engagement on the specified A6 Quattro years.
R1 99-02 Audi A6 Quattro Rear Left Drilled & Slotted Black Brake Rotor