ARP 207-4203 M11 Cylinder Head Studs Kit for 1994-up Mitsubishi EVO8 EVO9 Eclipse 4G63 2.0LMITSUBISHI 16V 1994 1999 4G63 Fastener Style: Stud Undercut Stud: No Head Style: 12 point Fastener Material: 8740 chromoly Fastener Finish: Black oxide Washers Included: Yes Cut to Fit: No Pro series cylinder head studs from ARP are cold forged to ensure molecular integrity. They are heat treated prior to thread rolling and machining and are rated at a whopping 220,000 psi. ARP Pro series kits are also available with 12 point nuts, and all kits come