ARP Custom Age 625+ Head Stud Kit (2002-2014 WRX / 2004+ STI)

  • Sale
  • $655.50
  • ALA
  • Regular price $1,028.00
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ARP Custom Age 625+ Head Stud Kit. These head studs are ideal for those of you who are running much more boost and power over factory levels in your racecar, rally car or daily driver and need a strong head stud kit to keep your heads from lifting. 


  • Made using newly formulated super-alloy demonstrates superior fatigue cycle life
  • High tensile strength and toughness of 260,000-280,000 psi
  • Resistance to atmospheric corrosion and oxidation
  • Includes (12) head studs
  • Includes (12) nuts
  • Includes (12) washers