MagnaFlow Direct-Fit Catalytic Converters by Car Sound are designed for easy bolt-on installation for the Professional Installer. Welding, cutting and tube bending equipment is not required. Each is designed to exact original equipment specifications. The Direct-Fits are available for the most popular vehicle makes and models. PartNumber : mag51693 Description : Direct-Fit OBDII Exhaust Manifold with Integrated Catalytic Converter; OEM Grade; Excl CA Models 2007-2011 Lexus GS450h Base V6.3456cc Exhaust, Mufflers & Tips::Catalytic Converter Direct Fit