im just curious cause i did a set of studs for a customer and he also brought in some hypermax graphite head gaskets for me to install. i did everthing as instructions stated. its been a few months and he called saying that hes head gaskets blew again and that 5 of the studs were loose. which i cant see how cause if that was the case it wouldve blown the gasket when i started the engine. me personally i didnt really like the head gasket design and i told him that but he wouldnt run the mls.