Established in 2011, Miller CAT (Clean Air Technology) Corporation is committed to building the highest quality and most advanced emission-control products by using innovative manufacturing processes. We proudly design and manufacture all our products in the USA, using the most effective and reliable standards and practices. Through our extensive experience and a dedicated customer-focused approach, we strive to provide premium products in the automotive aftermarket industry.
Our product line of Universal and Direct Fit Catalytic Converters are all CARB legal and are approved for but not limited to use in California and New York State. You can find all our CARB legal catalytic converters here on California Air Resources Board Aftermarket Catalytic Converters Database site.