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; Heavy Metal Series; Overall L-21.00 in.; 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.