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ARP Custom Age 625+ Head Stud Kit – Ultimate Strength for Subaru WRX/STI & More (Dealer)

ARP Custom Age 625+ Head Stud Kit – Ultimate Strength for Subaru WRX/STI & More (Dealer)

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Regular price $540.00
Regular price Sale price $540.00
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Maximize clamping force and prevent head gasket failure in your 2002-2014 Subaru WRX, 2004-2020 STI, and compatible models with ARP Custom Age 625+ 11mm Head Studs. This high-performance alloy is significantly stronger than stock head bolts, essential for high-boost and racing builds.

  • Custom Age 625+ alloy for superior strength and fatigue resistance
  • Handles extreme pressure for reliable head gasket sealing
  • Prevents blown head gaskets even under the most demanding conditions
  • Kit includes 11mm studs, hardened parallel-ground washers, and ARP assembly lube

Features:

  • 260,000-280,000 psi tensile strength for unmatched durability
  • Precision machined for perfect fitment and reliability
  • Reusable and trusted by professional engine builders
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