Home/2011 Mustang Gaskets and Fasteners MR Gasket MLS Stainless header gasket, 1-7/8", 5.0 Coyote $61.77 Ford Performance Main and Side Bolt kit, 5.0 Coyote $62.17 Ford Performance Head changing kit, Boss 302R 11mm, 2013-2014 5.0 Coyote/Boss $215.52 Ford Performance Head changing kit, Boss 302R 12mm, 2011-12 5.0 Coyote/Boss $202.06 ARP Head Studs, 5.0 Coyote 11mm $443.86