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IAG Performance ARP 1/2" Head Stud Set for Subaru EJ25 and FA20 DIT
IAG Performance ARP 1/2" Head Stud Set for Subaru EJ25 and FA20 DIT
IAG

IAG Performance ARP 1/2" Head Stud Set for Subaru EJ25 and FA20 DIT

SKU: IAG-ENG-1700
Sale price$761.99 CAD
Check Vehicle Fitment Confirm compatibility before ordering
2002–2007 Subaru WRX
Fitment Note
Requires case drilling/tapping and cylinder-head drilling for 1/2-inch head studs.
2008–2014 Subaru WRX
Fitment Note
Requires case drilling/tapping and cylinder-head drilling for 1/2-inch head studs.
2004–2007 Subaru STI
Fitment Note
Requires case drilling/tapping and cylinder-head drilling for 1/2-inch head studs.
2008–2014 Subaru STI
Fitment Note
Requires case drilling/tapping and cylinder-head drilling for 1/2-inch head studs.
2015–2021 Subaru STI
Fitment Note
Requires case drilling/tapping and cylinder-head drilling for 1/2-inch head studs.
2004–2008 Subaru FORESTER
Trim XT
Fitment Note
Requires case drilling/tapping and cylinder-head drilling for 1/2-inch head studs.
2009–2013 Subaru FORESTER
Trim XT
Fitment Note
Requires case drilling/tapping and cylinder-head drilling for 1/2-inch head studs.
2005–2009 Subaru LEGACY
Trim GT
Fitment Note
Requires case drilling/tapping and cylinder-head drilling for 1/2-inch head studs.
2015–2021 Subaru WRX
Fitment Note
Requires case drilling/tapping and cylinder-head drilling for 1/2-inch head studs.
2013–2021 Subaru BRZ
Fitment Note
Requires case drilling/tapping and cylinder-head drilling for 1/2-inch head studs.
2013–2016 Scion FR-S
Fitment Note
Requires case drilling/tapping and cylinder-head drilling for 1/2-inch head studs.
2017–2021 Toyota 86
Fitment Note
Requires case drilling/tapping and cylinder-head drilling for 1/2-inch head studs.
The IAG Performance 1/2 Inch Head Stud Set is manufactured by ARP and is designed for use on high horsepower Subaru EJ25 and FA20 DIT engines. Due to the larger size of the head studs, a greater load can be placed on the fasteners and in turn it aids in preventing cylinder heads from lifting in race applications. The larger size of the head studs requires the case halves to be drilled and tapped. The cylinder heads will also require drilling to accept the larger studs.

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