260-4701

ARP

ARP Head Stud Kit - 11mm (WRX/STi 01-14)

  • On Sale
  • Regular price $534.99
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DESCRIPTION

ARP uses a premium grade 8740 alloy that is rated far superior to "aircraft" quality. Then, each stud is placed vertically in special racks and precisely heat-treated to 200,000 psi.

ARP studs are thread rolled after heat-treat, which gives them about 1000% (that's ten times) better fatigue strength than those studs that are threaded prior to heat-treat (a very common industry practice). It costs a lot more to do it this way, because it's tough on tooling, but the results are well worth the extra effort.

SPECIFICATIONS

  • Fastener Style - Stud
  • Undercut Stud - No
  • Head Style - 12-point
  • Fastener Material - 8740 Chromoly
  • Fastener Finish - Black Oxide
  • Washers Included - Yes
  • Cut to Fit - No

COMPATIBILITY

  • 2001-2014 Subaru WRX
  • 2002-2014 Subaru STi
  • 2003-2012 Subaru Forester XT
  • 2004-2009 Subaru Liberty GT
  • 2004-2009 Subaru Outback XT