This is a direct replacement 4-Piston brake pad kit for the 2022+ Camaro SS 1LE, ZL1, ZL1 1LE and Cadillac CT4-V Blackwing models, originally delivered to California or Washington State that required them to be copper free. Please note that these are specific to those models that contain RPO Code A1Y, J6H and BCD. Due to the shape of the brake pad itself, it will only work on the appropriate rotors supplied with that brake package from the factory.
General Motors is an OEM manufacturer. GM designs and creates the vehicles and the parts for them for makes such as Buick, Cadillac, GMC, and Chevrolet. All GM branded parts are OEM standard quality components and were designed and manufactured to either be on the vehicle from the factory or purchased after the fact as an accessory.