The ProMAXX Mikey II ProKit is capable of removing broken exhaust manifold studs in both current GM LS engines 5.3L, 6.0L, and 6.2L (2014-2020) and previous generation engines 4.8L, 5.3L, 6.0L, and 6.2L (1999 to 2013). The ProMAXX patented design facilitates machine grade tooling that utilizes hardened steel threaded bushings that can be placed anywhere to deliver consistent and repeatable results without moving the ProPlate. The stainless steel fasteners are precision turned to bring Mikey II into alignment without the error associated with less expensive slip-fit components. Manufactured in the U.S.A. For use in Chevrolet Silverado and Suburban, GMC Sierra and Yukon, and Cadillac Escalade 1999 to present.