Keep the check engine light off with MagnaFlow HM Grade FederalEPA Compliant Direct - Fit Catalytic Converter 50291. 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. Designed to fit the 2007 - 2013 BMW 328i, 2009 - 2013 BMW 328i xDrive, and more, this direct - fit catalytic converter also interchanges with OE parts 18 30 7 547 840 and 18 40 7 545 309, among others. 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 FederalEPA Emission systems.



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