Keep the check engine light off with MagnaFlow OEM Grade Federal/EPA Compliant Direct-Fit Catalytic Converter 21-276. 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 2010-2012 Subaru Legacy and interchanges with OE part 44612-AA490. The included gaskets/hardware reduce the possibility of a leaking seal while avoiding the need to reuse corroded factory parts for installation. This replacement part is designed to meet or exceed Federal emissions requirements set forth by the EPA; complying with legal standards for OBDII Federally registered vehicles with California or Federal/EPA Emission systems.