IAG Performance 14mm Head Stud Set 14mm Head Stud Set for Subaru EJ25 and FA20 DIT

Subaru: WRX STI 15 - 21, Subaru: Impreza 04 - 14 WRX STI / WRX, Subaru: WRX 15 - 21, Subaru: Legacy 05 - 09 GT spec.B / GT, Subaru: Forester 04 - 13 XT / XT Premium / XT Limited

• Heads must be modified to accept larger studs.
• Kit Includes: 14mm Head Studs (x12), 14mm Head Stud Washers (x12), 14mm Head Stud Nuts (x12)
• Requires drilling and tapping.

IAG's / ARP 14mm Head Stud Set is designed for use on high horsepower Subaru engines. The larger size of the stud increases its load capacity which in turn helps to prevent the cylinder head from lifting and creating head gasket failures. The oversized head studs require drilling and tapping the case as well as splitting the locating dowels to accept the larger studs. In addition, the cylinder head will also require the head stud hole clearances enlarged to accept the studs.Set Includes: (x12) ARP2000 14mm x 1.5mm Head Studs (x12) ARP Washers (x12) ARP Nuts (x1) ARP Fastener Assembly Lube 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 Note: Studs can be used on Subaru EJ25, FA20 DIT and 2.0L EJ20 Engines. PDF Install Guide for 1/2" & 14mm Head Studs