Keep the check engine light off with MagnaFlow Direct-Fit Catalytic Converter 15448. With features including free-flowing mandrel-bent tubing and highly corrosion resistant stainless steel construction, easily install this spun body converter yourself using the proper tools, no cutting or welding required. MagnaFlow's state-of-the-art metrology department uses the latest 3D scanning systems during research and development, so you can be confident that your new part will fit and function like the original equipment. By replicating the OE spun body design, the single laser fusion weld greatly reduces the possibility of a leak, and our compact, low-mass design also allows for greater thermal efficiency.This direct-fit catalytic converter is designed specifically for the 2005-2009 Ford Mustang and interchanges with OE part AR3Z-5F250-A. Hardware is included to eliminate the hassle of working with corroded factory parts.