Get the upgraded and replacement hardware you need to repair or assemble the engine in your 2011-2016 Ford 6.7L Powerstroke. Head Studs and Fasteners are available for high-performance applications with increased power outputs, as well as OE-style replacements that are engineered to maintain the factory function. Upgraded fasteners and head studs are engineered to handle the increased power of your engine with performance components. At XDP, you can find high-quality manufacturers like ARP, Fluidampr, and more who produce head studs, head bolts, flex plate bolts, fuel injector hold down bolts, and more.