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IAG Performance

IAG ARP 1/2" Head Stud Set for Subaru Multiple Fitments

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Illustrative estimate only, not a financing quote or guaranteed offer. Actual payments, frequency and terms vary by provider and eligibility. Taxes, shipping and add-ons are excluded.

Pay over time available · Est. $17.19/payment
ⓘ

Illustrative estimate only, not a financing quote or guaranteed offer. Actual payments, frequency and terms vary by provider and eligibility. Taxes, shipping and add-ons are excluded.

IAG Performance IAG ARP 1/2" Head Stud Set for Subaru Multiple Fitments
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Fitment

Please Note: Also fits 2005-2009 Subaru Outback XT. Case halves must be drilled and tapped and the cylinder heads drilled to accept the larger 1/2 inch head studs.
  • 2013-2016 Scion | FR-S
  • 2002–2026 Subaru | WRX
  • 2004–2021 Subaru | WRX STI
  • 2004–2018 Subaru | Forester XT
  • 2013-2020 Subaru | BRZ
  • 2005–2012 Subaru | Legacy GT
  • 2012–2023 Subaru | Impreza

Description

The IAG ARP 1/2 inch Head Stud Set is a head stud set manufactured by ARP for high horsepower Subaru EJ25, FA20 and FA20 DIT engines. The larger studs allow a greater load on the fasteners, which aids in preventing cylinder heads from lifting in race applications.

  • Manufactured by ARP
  • Stud size: 1/2 inch
  • Designed for high horsepower Subaru EJ25, FA20 and FA20 DIT engines
  • The larger size requires the case halves to be drilled and tapped, and the cylinder heads require drilling to accept the larger studs
  • Part number: IAG-ENG-1700

Q: Does this head stud set fit my Subaru?

A: Check the fitment information on this page for your exact model and year before ordering. The set is designed for Subaru EJ25, FA20 and FA20 DIT engines.

Q: What is included?

A: The set is the IAG / ARP 1/2 inch head stud set for the applications listed on this page.

Q: Is machining required to install these studs?

A: Yes. The case halves must be drilled and tapped and the cylinder heads drilled to accept the larger 1/2 inch studs.

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