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ARP main bolt kit for Subaru WRX EJ20 and EJ25 engines provides head/block fasteners specified for those Subaru engine families. ARP fasteners are produced to meet high-strength fastening requirements that maintain clamping force under repeated thermal cycles. Use the kit to replace original bolts with application-specific ARP hardware during engine builds or head work.
ARP Subaru WRX EJ20 & EJ25 Block Bolts
