The R1 Concepts Geo-Carbon drilled-and-slotted brake rotor is a direct-fit replacement for the front left position on Cadillac STS models (2004–2008). It provides the drilled-and-slotted Geo-Carbon surface designated for that wheel and is offered as the vehicle-specific rotor to be used when replacing worn rotors or restoring the factory drilled-and-slotted configuration during brake service.
R1 04-08 Cadillac Sts Front Left Drilled & Slotted Geo-Carbon Rotor