ProMAXX Tool builds guided extraction kits for the repairs nobody wants to quote, and they are made in the USA. A snapped exhaust manifold bolt used to mean welding a nut on and hoping, or pulling the head and sending it to a machine shop. These kits bolt a guide plate to the cylinder head instead, so the drill starts dead centre on the broken bolt and the tap follows straight. The line covers manifold repair kits by engine family, the adjustable BULLIT® kits for in-line bolt patterns from four to twelve cylinders, fuel injector pullers and wheel bearing hub pullers.