The R1 Concepts drilled black brake rotor for the front left of 2013–2022 Cadillac ATS applications is listed as a vehicle-specific replacement for the front-left position. This direct-fit rotor carries a drilled surface and black finish, intended to replace the original front-left rotor and preserve the vehicle's look while serving standard braking duties for the stated ATS years.
R1 13-22 Cadillac ATS Front Left Drilled Black Brake Rotor