1999-02 Chevy, GMC 4.8L, 5.3L (2WD only) Truck headers. Made from 304 stainless steel, for maximum corrosion resistance. All tubes are CNC mandrel bent for optimal flow. 3/8" CNC laser cut flanges. These headers come with air tube fitting on primary and 1-3/4" primaries that flow into a 2-1/2" slip-fit collectors with O2 bungs welded into the collector that flow into 2-1/2" High-flow Converters into leads then to y-pipe with donut gasket included that connects to Factory connection point with flange. Kit includes High temp RTV silicone, 8mm Header Bolt Kit, All the accuseal clamps needed also the bolt kit to connect the 2 flanges for factory connection. Mill finish, All TIG welded for strength and durability. These kits come with a lifetime warranty and proudly made in the USA.. Stainless Works, 1999-02 Chevy, GMC 4.8L, 5.3L, (2WD only) Truck. CNC mandrel bent,304 Stainless Steel, 3/8" Stainless Steel flange, Headers, 1-3/4" Primaries, High-flow Converters, O2 bungs, Y-pipe, 2-1/2" leads, 2-1/2" Slip-fit collectors, Factory connection, Mill Finish, TIG welded, American made, Lifetime Warranty, Made in the USA.. 1999-02 Chevy, GMC 4.8L, 5.3L (2WD only) Truck headers. 1-3/4" primaries, CNC mandrel bent tubes and 3/8" thick CNC Laser cut flanges. 2-1/2" Slip-fit collectors, 2-1/2" High-flow Converters and y-pipe. Factory connection point with flange.. 1999 thru 2002 Chevy Silverado 1/2 Truck 4.8L, 5.3L (2WD) and 1999 thru 2002 GMC Sierra 1/2 Truck 4.8L, 5.3L (2WD). 1999-02 Chevy, GMC 4.8L, 5.3L, (2WD only) Headers, Catted, Factory Connection.. 1999-02 Chevy/GMC 4.8L, 5.3L (2WD Only) Catted headers 1-3/4" Primaries.. Stainless Works Chevy/GMC Truck 1999-02 Headers 2WD with Converters. 1999-02 Chevy/GMC 4.8L, 5.3L 2WD Hdrs.. Exhaust Header Pipe Kit. Exhaust System. Header Kit

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