Maximizing smoothest high exhaust air flow rate. TIG welded CNC machine flange. 2-Piece 4-1 Racing design(8-2-1). Increase high flow air, instantly gain 10 to 15 Hp.Inlet / Outlet: 1.76" / 2.89". 1 x Header exhaust system. Universal turbo manifold fits LS1, LS2, LS3, LS4, LS6, LSX V8 engines. Compatability chart is for reference item is not direct fit. Exhaust fabrication / Welding is required. Professional Installation is Highly Recommended. Installation Instruction is NOT Included. We provide and source the best products for almost all vehicles and trucks focusing mainly on aftermarket performance parts. We have a long positive history of loyal and happy customers to show for and Im sure you will find a product fit for your vehicle easily! Some of the packages cannot be delivered to a PO Box. Package will be held until a valid physical address is provided. The item "SBC LS1/LS2/LS6 LSX UP&FORWARD TURBO MANIFOLD HEADER FOR CHEVY SMALL BLOCK LS V8" is in sale since Wednesday, February 3, 2016. This item is in the category "eBay Motors\Parts & Accessories\Car & Truck Parts\Exhaust\Exhaust Manifolds & Headers". The seller is "kospeed2008" and is located in Rowland Heights, California. This item can be shipped worldwide.