MBRP 04.5-2010 Chev/GMC 6.6L Duramax Black 3in Down Pipe

Replace that restrictive factory downpipe with a MBRP direct replacement downpipe for more flow, fuel economy, and better performance. Removal of OEM catalytic converters may be a violation of emissions laws in your jurisdiction. Ensure that the intended use of this product is permitted. Not for sale or use in the state of California.Installation InstructionsInstallation InstructionsTechnical DrawingWarrantyThis Part Fits: Year Make Model Submodel 2006-2009 Chevrolet Express 2500 Base 2006 Chevrolet Express 2500 LS 2006 Chevrolet Express 2500 LT 2006-2009 Chevrolet Express 3500 Base 2004-2005 Chevrolet Silverado 2500 HD Base 2004-2006 Chevrolet Silverado 2500 HD LS 2004-2009 Chevrolet Silverado 2500 HD LT 2007-2009 Chevrolet Silverado 2500 HD LTZ 2004-2009 Chevrolet Silverado 2500 HD WT 2007 Chevrolet Silverado 2500 HD Classic LS 2007 Chevrolet Silverado 2500 HD Classic LT 2007 Chevrolet Silverado 2500 HD Classic WT 2004-2005 Chevrolet Silverado 3500 Base 2004-2006 Chevrolet Silverado 3500 LS 2004-2006 Chevrolet Silverado 3500 LT 2004,2006 Chevrolet Silverado 3500 WT 2007 Chevrolet Silverado 3500 Classic LS 2007 Chevrolet Silverado 3500 Classic LT 2007 Chevrolet Silverado 3500 Classic WT 2007-2009 Chevrolet Silverado 3500 HD LT 2007-2009 Chevrolet Silverado 3500 HD LTZ 2007-2009 Chevrolet Silverado 3500 HD WT 2006-2010 GMC Savana 2500 Base 2006-2010 GMC Savana 3500 Base 2004-2005 GMC Sierra 2500 HD Base 2006 GMC Sierra 2500 HD SL 2004-2010 GMC Sierra 2500 HD SLE 2004-2010 GMC Sierra 2500 HD SLT 2004-2010 GMC Sierra 2500 HD WT 2007 GMC Sierra 2500 HD Classic SL 2007 GMC Sierra 2500 HD Classic SLE 2007 GMC Sierra 2500 HD Classic SLT 2007 GMC Sierra 2500 HD Classic WT 2004-2005 GMC Sierra 3500 Base 2006 GMC Sierra 3500 SL 2004-2006 GMC Sierra 3500 SLE 2004-2006 GMC Sierra 3500 SLT 2004-2006 GMC Sierra 3500 WT 2007 GMC Sierra 3500 Classic SL 2007 GMC Sierra 3500 Classic SLE 2007 GMC Sierra 3500 Classic SLT 2007 GMC Sierra 3500 Classic WT 2007-2010 GMC Sierra 3500 HD SLE 2007-2010 GMC Sierra 3500 HD SLT 2007-2010 GMC Sierra 3500 HD WT