MagnaFlow Conv DF 04-06 Audi S4 4.2L

MagnaFlow Direct-Fit Catalytic Converters are designed for easy bolt-on installation for the Professional Installer. Each is designed to exact the original equipment specifications. While the majority of the Direct-Fit Catalytic Converter products do not require welding; cutting or bending; limited applications may require additional welding for optimal installation. Direct Fit Catalytic Converter; OEM Grade Series; 2.5 in. Tubing/Inlet/Outlet OD; Overall L-45.50 in.; O2 Sensor Location Pre/Post Conv.; Not Air Tube Kit Adaptable; MagnaFlow specializes in superior catalytic converter and exhaust technology and each converter is designed to the exact original equipment specifications while keeping the Check Engine Light off.