Bully Dog ARP exhaust manifold stud kits include the necessary hardware for specific diesel applications. Stainless steel studs and nuts are furnished, along with washers. The fasteners come packaged in a quantity set for your convenience.Typically fits years for 3406B & 3406C 14.6L 89-94, 3406E 14.6L 95-98 & 15.8L 95-98, C-10 10.3L 99-03, C-11 11.1L 03-06, C-12 12.0L 97-03, C-13 12.5L 04-10, C-15 14.6L 99-03, ACERT C-15 15.2L 04-10, C-16 15.8L 99-03, C-9 9.3L 04-10.