The R1 Concepts drilled black brake rotor for 2009–2015 Cadillac CTS (front left) is supplied as a replacement driver-side front rotor. The item description calls out a drilled face and black finish, and identifies this rotor for Cadillac CTS front-left applications across the 2009–2015 model years.
R1 09-15 Cadillac CTS Front Left Drilled Black Brake Rotor