2001-03 Chevy/GMC 3/4 Ton Truck 8.1L, headers. All tubes are CNC mandrel bent for optimal flow. Made from 304 stainless steel for maximum corrosion resistance. Features 2" primary tubes and 3" collectors, connects to factory head pipe and cats. Headers are fully TIG welded and back purged. These are TIG welded for strength and durability. These kits come with a lifetime warranty and proudly made in the USA.. 2001-03 Chevy/GMC 3/4 Ton Truck 8.1L, Headers with 304 stainless steel construction, tig welded for strength. Features 2" primary tubes and 2-17/20" Slip-fit collectors, connects to factory headpipe and cats.. Stainless Works, Chevy Silverado Headers, GMC Sierra Headers, Silverado 8.1L Headers, Sierra 8.1L Headers, 3/4 ton truck headers, three quarter ton truck headers, 2500 truck. 2001 thru 2003 Chevy Silverado 3/4 Ton 8.1L and 2001 thru 2003 GMC Sierra 3/4 Ton 8.1L. Stainless Works 00-03 Silverado 8.1L Long Tube Headers - Uses Factory Cats. Stainless Works Chevy Silverado / GMC Sierra 3/4 Ton Truck Headers. Stainless Works Headers Only 2" With EGR Fitting, Factory Connect. Stainless Works Chevy GMC Truck Headers. Exhaust Header Pipe Kit. Exhaust System. Header Kit

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