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Keep the check engine light off with MagnaFlow California Grade CARB Compliant Direct-Fit Catalytic Converter 447270. 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 to fit the 2002-2006 GMC Sierra 2500 HD, 2001 Chevrolet Silverado 2500, and additional vehicles. 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 California Air Resource Board requirements, and has undergone additional testing to comply with CARB guidelines to allow for legal use in California and CARB restricted states, for the listed vehicles.
Technical Bulletin


This Part Fits:

Year Make Model Submodel
2005 Chevrolet Silverado 1500 HD Base
2005 Chevrolet Silverado 1500 HD LS
2005 Chevrolet Silverado 1500 HD LT
2001 Chevrolet Silverado 2500 Base
2001 Chevrolet Silverado 2500 LS
2001 Chevrolet Silverado 2500 LT
2005-2006 GMC Sierra 1500 HD SLE
2005-2006 GMC Sierra 1500 HD SLT
2001 GMC Sierra 2500 SL
2001 GMC Sierra 2500 SLE
2001 GMC Sierra 2500 SLT
2002-2005 GMC Sierra 2500 HD Base
2002,2006 GMC Sierra 2500 HD SL
2002-2006 GMC Sierra 2500 HD SLE
2002-2006 GMC Sierra 2500 HD SLT
2003-2006 GMC Sierra 2500 HD WT
2001-2005 GMC Yukon XL 2500 SLE
2001-2005 GMC Yukon XL 2500 SLT
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