Keep the check engine light off with MagnaFlow OEM Grade Federal/EPA Compliant Direct-Fit Catalytic Converter 51578. 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 2009-2013 Chevrolet Silverado 1500, 2009-2013 GMC Sierra 1500, and more, this direct-fit catalytic converter also interchanges with OE parts 19418941 and 15905948, 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 California or Federal/EPA Emission systems.
Technical Bulletin


This Part Fits:

Year	Make	Model	Submodel
2010-2013	Cadillac	Escalade	Hybrid
2010-2013	Cadillac	Escalade	Hybrid Platinum
2013	Chevrolet	Avalanche	Black Diamond LS
2013	Chevrolet	Avalanche	Black Diamond LT
2013	Chevrolet	Avalanche	Black Diamond LTZ
2009-2012	Chevrolet	Avalanche	LS
2009-2012	Chevrolet	Avalanche	LT
2009-2012	Chevrolet	Avalanche	LTZ
2009-2013	Chevrolet	Silverado 1500	Hybrid
2009-2013	Chevrolet	Silverado 1500	LS
2009-2013	Chevrolet	Silverado 1500	LT
2009-2013	Chevrolet	Silverado 1500	LTZ
2009-2013	Chevrolet	Silverado 1500	WT
2010-2013	Chevrolet	Silverado 1500	XFE
2009-2014	Chevrolet	Suburban 1500	LS
2009-2014	Chevrolet	Suburban 1500	LT
2009-2014	Chevrolet	Suburban 1500	LTZ
2010-2013	Chevrolet	Tahoe	Hybrid
2009-2014	Chevrolet	Tahoe	LS
2009-2014	Chevrolet	Tahoe	LT
2009-2014	Chevrolet	Tahoe	LTZ
2009-2014	Chevrolet	Tahoe	PPV
2012-2014	Chevrolet	Tahoe	SSV
2009-2013	GMC	Sierra 1500	Hybrid
2009-2013	GMC	Sierra 1500	SL
2009-2013	GMC	Sierra 1500	SLE
2009-2013	GMC	Sierra 1500	SLT
2009-2013	GMC	Sierra 1500	WT
2010-2013	GMC	Sierra 1500	XFE
2010-2013	GMC	Yukon	Denali Hybrid
2010-2013	GMC	Yukon	Hybrid
2009-2014	GMC	Yukon	SLE
2009-2014	GMC	Yukon	SLT
2009-2014	GMC	Yukon XL 1500	SLE
2009-2014	GMC	Yukon XL 1500	SLT