The ProMAXX ToolElizabeth ProPlate, Base Kit and ProKit are designed for removing broken exhaust manifold bolts on Ford 3.5L, 3.7L and EcoBoost engines. This kit is available in three version: ProPlate is designed for customers who already have a ProMaxx 200 series product; Base Kit for the basic essentials to complete the repair; and ProKit, which includes all the accessories to deliver the fastest repair possible. ProMaxx tools are manufactured in the USA from American craftsmen with American-made materials. The Elizabeth also includes a lifetime warranty and free unlimited technical support.