Description
Fitment Information:
2002-2021 Subaru WRX
2004-2021 Subaru STI
2013-2020 Subaru BRZ
2004-2013 Subaru Forester XT
2005-2009 Subaru Outback XT
2006 Saab 9-2X Aero
Features:
The IAG Performance 1/2″ inch Head Stud Set is manufactured by ARP and is designed for use on high horsepower Subaru EJ25, FA20, 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.
Install Requirements:
- Use head gaskets with 14mm stud provisions or drill head gaskets to clear the larger 14mm head studs for fitment
- Splitting the OEM locating dowels
- Drilling and tapping the engine case
- Drilling out the cylinder head stud holes for 14mm stud clearance
What’s in the Box:
- (12) ARP2000 14mm x 1.5mm Head Studs
- (12) ARP Washers
- (12) ARP Nuts
- (1) ARP Fastener Assembly Lube
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