The R1 Concepts slotted black brake rotor for 2009–2011 Cadillac STS (front left) is a single replacement rotor with a slotted braking face and black finish. Specified for the front left wheel position on the listed STS years, the rotor emphasizes slotting and coating as its primary features; confirm your STS model year and mounting side to ensure compatibility before purchase.
R1 09-11 Cadillac STS Front Left Slotted Black Brake Rotor