Officially Licensed by GM, these Camaro Billet items by DefenderWorx are the best! The entire DefenderWorx team is committed to perfection. This commitment stems from over 20 years’ experience in the custom machining industry, where 0.0001" tolerances are the standard, not the exception. DefenderWorx is able to consistently provide such tight tolerances by manufacturing in-house. In doing so, the integrity of the entire manufacturing process is maintained.