Straight-through flow path. Exclusive expansion chamber dissipates annoying mid-range drone. Flows up to 201% better than stock. Authoritative, but never overpowering, exhaust sound. Polished-stainless steel. 4 inch diameter in/out.Monster Exhaust Benefits. Replacing the restrictive stock muffler with Banks free-flowing Monster muffler makes a huge difference in airflow, sound and performance. The Banks muffler has a large inlet and outlet. And in between, the exhaust flows straight through, instead of torturously winding its way back and forth inside hairpin chambers and building up back-pressure. And only Banks Monster muffler has an expansion chamber to alleviate the nasty drone that other straight-through mufflers are known for. Banks utilizes durable ceramic packing with a high temp rating so it won't degrade like fiberglass. Add it all together and you get a muffler that flows over three times better than stock and delivers a pleasing, throaty rumble!

This Part Fits:

Year	Make	Model	Submodel
2001-2005	Chevrolet	Silverado 2500 HD	Base
2001-2006	Chevrolet	Silverado 2500 HD	LS
2001-2007	Chevrolet	Silverado 2500 HD	LT
2007	Chevrolet	Silverado 2500 HD	LTZ
2004-2007	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
2001-2005	Chevrolet	Silverado 3500	Base
2001-2006	Chevrolet	Silverado 3500	LS
2001-2006	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	Chevrolet	Silverado 3500 HD	LT
2007	Chevrolet	Silverado 3500 HD	LTZ
2007	Chevrolet	Silverado 3500 HD	WT
1998-2002	Dodge	Ram 2500	Base
2003,2005-2007	Dodge	Ram 2500	Laramie
2003-2007	Dodge	Ram 2500	SLT
2006-2007	Dodge	Ram 2500	Sport
2003-2007	Dodge	Ram 2500	ST
2006-2007	Dodge	Ram 2500	TRX4
1998-2002	Dodge	Ram 3500	Base
2003-2007	Dodge	Ram 3500	Laramie
2003-2007	Dodge	Ram 3500	SLT
2006-2007	Dodge	Ram 3500	Sport
2003-2007	Dodge	Ram 3500	ST
2007	Dodge	Ram 3500	TRX4
2002-2005	GMC	Sierra 2500 HD	Base
2001-2002,2006	GMC	Sierra 2500 HD	SL
2001-2007	GMC	Sierra 2500 HD	SLE
2001-2007	GMC	Sierra 2500 HD	SLT
2003-2007	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
2002-2005	GMC	Sierra 3500	Base
2001-2002,2006	GMC	Sierra 3500	SL
2001-2006	GMC	Sierra 3500	SLE
2001-2006	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	GMC	Sierra 3500 HD	SLE
2007	GMC	Sierra 3500 HD	SLT
2007	GMC	Sierra 3500 HD	WT