Exhaust Manifold Headers for Ford 1979-1993 Mustang 5.0 V8 GT/LX/SVT

Product Description: 100% Brand New Items, Never Used Or Installed Made of High Quality T-304 Stainless Steel with Computerized Mandrel-Bends for Strength and Durability The exhaust manifolds found in the 1979-1993 5.0L(302ci) Ford Mustang were designed to combine the exhaust gasses from each of the cylinders quickly with a manifold that was cost effective to produce. The 4-1 Shorty Style off-road headers are designed to allow the exhaust gasses to flow more freely from each 4 cylinder bank and combine in a more efficient manner.  Tubing has been optimized for the 5.0L engine.  i.e. Maximizing Smoothest High Exhaust Air Flow Rate 2 X 4-1 High Performance Racing Spec. Design Computerized Mandrel-Bended to Maximize Air Flow Smoothness TIG Welded CNC Machined Flange for Resistance against Cracking and Wearing Increase Engine Exhaust Output and Efficiency Inlet/ Outlet: 1.25"/ 2.25" Increase High Flow Air, Instantly Gain 10 -15 Hp. / Tq. Professional Installation is Highly Re