ARP's Pro Series driveline fastener kits for your FR-S feature premium grade 8740 material that is rated at 200,000 psi tensile strength and include a 1/2 oz. tube of ARP's Ultra-Torque fastener assembly lubricant. ARP bolts are cold forged to ensure molecular integrity, heat treated prior to thread rolling and machining, and designed to exceed the OEM fasteners in strength and durability. Optimum design, enhanced reliability and increased strength are the main attributes of ARP's Pro Series fastener kits.
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