IAG Performance ARP 1/2 In Head Stud Set For Subaru EJ25 FA20 And FA20 DIT.

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. Provides greater clamping force to protect cylinder head gaskets under extreme cylinder pressures. Vehicle Specific Saab: 9-2X 05 - 06 Aero Subaru: BRZ 2013 - 2020 Subaru: Forester 2004 - 2018 Subaru: Impreza 2002 - 2014 Subaru: Legacy 2005 - 2013 Subaru: WRX 2012 - 2021 Subaru: WRX STI 2013 - 2021 Attributes: Brand Name: IAG Performance GTIN: 00887753778451 Color: Silver End 1 Thread Diameter: 12.7 End 1 Thread Type: Fine End 2 Thread Diameter: 12.7 End 2 Thread Type: Fine Grade Type: Performance Length: 197 Material: Steel Seals Included: Yes Extended Information: Country of Origin: US Emissions : Emissions Compliance Exempt Life Cycle Status: Available To Order Packing Information: Quantity of Each: 1 Package UOM: EA Dimension: 10 x 5 x 3 inches Weight: 5 POUNDS PDF: