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.
Technical Drawing
Warranty
Installation Instructions


This Part Fits:

Year	Make	Model	Submodel
2015	Chevrolet	Silverado 2500 HD	High Country
2011-2015	Chevrolet	Silverado 2500 HD	LT
2011-2015	Chevrolet	Silverado 2500 HD	LTZ
2011-2015	Chevrolet	Silverado 2500 HD	WT
2015	Chevrolet	Silverado 3500 HD	High Country
2011-2015	Chevrolet	Silverado 3500 HD	LT
2011-2015	Chevrolet	Silverado 3500 HD	LTZ
2011-2015	Chevrolet	Silverado 3500 HD	WT
2015	GMC	Sierra 2500 HD	Base
2011-2015	GMC	Sierra 2500 HD	Denali
2011-2015	GMC	Sierra 2500 HD	SLE
2011-2015	GMC	Sierra 2500 HD	SLT
2011-2014	GMC	Sierra 2500 HD	WT
2015	GMC	Sierra 3500 HD	Base
2011-2015	GMC	Sierra 3500 HD	Denali
2011-2015	GMC	Sierra 3500 HD	SLE
2011-2015	GMC	Sierra 3500 HD	SLT
2011-2014	GMC	Sierra 3500 HD	WT