Head Studs & Block Guard

2008-2015 Mitsubishi Evo X Head Studs Kit by ARP All Pro Series ARP2000 studs are centerless ground, heat-treated prior to thread rolling and machining, and are nominally rated at 220,000 psi. These ARP head studs deliver a 35% increase in tensile strength over the OEM torque-to-yield...

7 Bolt DSM / EVO 4-9 Head Studs ARP's Custom Age 625 Plus material is newly formulated super-alloy demonstrates superior fatigue cycle life, tensile strength and toughness - with complete resistance to atmospheric corrosion and oxidation. ARP is the first to develop manufacturing and...

Custom Age 625+ Head studs by ARP ARP's Custom Age 625 Plus material is newly formulated super-alloy demonstrates superior fatigue cycle life, tensile strength and toughness - with complete resistance to atmospheric corrosion and oxidation. ARP is the first to develop manufacturing and testing...