<p> </p><p><b>Description:</b></p><ul> <li> 100% brand new, Never been tried or installed</li> <li> No instructions included</li> <li> Professional installation is highly recommended <br></li></ul><p><b>Air Intake System:</b></p><ul> <li> Made Of High Quality T-6061 Aluminum Material For Strength And Durability</li> <li> Lightweight High Air Flow Racing Performance Spec. Design</li> <li> Helps Engine To Draw In More And Colder Air Resulting In Better Throttle Response And Higher Explosive Horsepower Output</li> <li> Heatshield to Block Radiant Engine Bay Heat for Improved Combustion <br></li></ul><p><b>Dual 4-1 Stainless Steel Exhaust Header Manifolds:</b></p><ul> <li> Made of High Quality T304 Stainless Steel Material</li> <li> 2 x 4-1 manifolds connecting into a 3" Y-pipe</li> <li> Header Inlet / Outlet Size (IN):1.734"/2.887"(Error range:0.1-0.2inch)</li> <li> TIG welded CNC machined flange</li> <li> Bolt-on installation</li> <li> Mandrel-Bent For Maximum Performance</li> <li> TIG Weld & Polished Stainless Steel</li> <li> Thick Steel Flanges</li> <li> Head Gaskets Included. Reuse OEM Bolts & Donut Gaskets <br></li></ul><p><b>Fitment:</b></p><ul> <li> Compatible with 1999-2006 CHEVY/GMC GMT800 SILVERADO/SIERRA 1500 <br></li></ul><p><b>Package including:</b></p><ul> <li> 1 x Cold Air Intake Kit</li> <li> 1 x Exhaust Header Manifold Set ( Left & Right) With Y Pipe</li> <li> Hardware as Shown in the Picture Above</li> <li> Gasket(s) and Bolt(s) as shown in the Picture Show </li></ul>