aFe is a premier designer and manufacturer of automotive performance upgrade systems and components. They feature a line of direct-fit catalytic converters available for many Domestic and European vehicles. They are constructed from premium mandrel-bent 409 stainless steel for excellent corrosion resistance and long life. They use laser-cut, factory-style flanges, so they are a true bolt-on system. aFe direct-fit catalytic converters also feature oxygen sensor ports (if applicable), so no modifications are necessary.