SS Long Tube Exhaust Header Manifold+Y-Pipe for 99-06 Chevy/GMC GMT800 4.8/5.3

Description: 100% brand new, Never been tried or installed Made of High Quality T304 Stainless Steel Material 2 x 4-1 manifolds connecting into a 3" Y-pipe TIG welded CNC machined flange Increase high flow air, instantly gain 10 to 15 Hp. / Tq. Bolt-on installation Improve Sound, Horsepower & Torque Mandrel-Bent For Maximum Performance TIG Weld & Polished Stainless Steel Thick Steel Flanges Head Gaskets Included. Reuse OEM Bolts & Donut Gaskets No instructions included Professional installation is highly recommended   Package including: 1X Set of Header Exhaust with Y-pipe Gasket(s) and Bolt(s) as shown in the Picture Show   Fitment: 1999-2006 CHEVY/GMC GMT800 SILVERADO/SIERRA 1500 For More Years and Models, Please Check Compatibility Will not fits Z71 or 4X4 models