ARP premium grade Pro Series bolts have a 200,000 psi rating. ARP Mitsubishi 4B11 Evo X Flywheel Bolt Kit are heat-treated prior to thread rolling and machining, feature an exclusive, flat 12-point head design and larger than stock shank diameter for increased strength and improved flywheel register. Includes a full set of 7 bolts with assembly lube.
 
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