This aluminum casting sits on the factory intake manifold of a IH/Ford 6.9 or 7.3L IDI engine and provides an easy way to get pressurized air from a turbocharger into the engine. Originally sold with the Hypermax Turbocharger Kit (still available), this part can be used with your own home-brew turbocharger if you are going that route, or is needed if removing the intercooler from a Hypermax Intercooler kit equipped truck. Part is affixed with the original air cleaner bolt, not included. Hat is equipped with a threaded hole for a boost gauge, or pipe plug.