The ProMAXX Tool Elizabeth 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.