MBRP 15-16 Chevy/GMC 6.6L Duramax 3in Down Pipe (For 3 Bolt Flange Style Connection)

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. Only works with a 3 bolt flange style connection Fitment: 2015 Chevrolet Express 2500 Base 2015 Chevrolet Express 3500 Base 2015 Chevrolet Express 3500 LS 2015 Chevrolet Express 3500 LT 2015 Chevrolet Silverado 2500 HD High Country 2015 Chevrolet Silverado 2500 HD LT 2015 Chevrolet Silverado 2500 HD LTZ 2015 Chevrolet Silverado 2500 HD WT 2015 Chevrolet Silverado 3500 HD High Country 2015 Chevrolet Silverado 3500 HD LT 2015 Chevrolet Silverado 3500 HD LTZ 2015 Chevrolet Silverado 3500 HD WT 2015 GMC Savana 2500 Base 2015 GMC Savana 3500 Base 2015 GMC Savana 3500 LS 2015 GMC Savana 3500 LT 2015 GMC Sierra 2500 HD Base 2015 GMC Sierra 2500 HD Denali 2015 GMC Sierra 2500 HD SLE 2015 GMC Sierra 2500 HD SLT 2015 GMC Sierra 3500 HD Base 2015 GMC Sierra 3500 HD Denali 2015 GMC Sierra 3500 HD SLE 2015 GMC Sierra 3500 HD SLT 2016 Chevrolet Express 2500 Base 2016 Chevrolet Express 3500 Base 2016 Chevrolet Express 3500 LS 2016 Chevrolet Express 3500 LT 2016 Chevrolet Silverado 2500 HD High Country 2016 Chevrolet Silverado 2500 HD LT 2016 Chevrolet Silverado 2500 HD LTZ 2016 Chevrolet Silverado 2500 HD WT 2016 Chevrolet Silverado 3500 HD High Country 2016 Chevrolet Silverado 3500 HD LT 2016 Chevrolet Silverado 3500 HD LTZ 2016 Chevrolet Silverado 3500 HD WT 2016 GMC Savana 2500 Base 2016 GMC Savana 3500 Base 2016 GMC Savana 3500 LS 2016 GMC Savana 3500 LT 2016 GMC Sierra 2500 HD Base 2016 GMC Sierra 2500 HD Denali 2016 GMC Sierra 2500 HD SLE 2016 GMC Sierra 2500 HD SLT 2016 GMC Sierra 3500 HD Base 2016 GMC Sierra 3500 HD Denali 2016 GMC Sierra 3500 HD SLE 2016 GMC Sierra 3500 HD SLT