ARP 260-4701 Head Stud Kit for 2002-2014 Subaru WRX & 2004-2021 STI EJ20/EJ25

Vehicle Fitment

• 2002-2014 Subaru WRX (EJ20, EJ25 DOHC)
• 2004-2021 Subaru WRX STI (EJ25 DOHC)
• 2009-2012 Subaru Legacy GT (EJ25 DOHC)
• 2004-2006 Subaru Baja Turbo (EJ25 DOHC)
• 2005-2009 Subaru Outback XT (EJ25 DOHC)
• 2004-2021 Subaru Forester XT (EJ25 DOHC)
• 2005-2006 Saab 9-2X Aero (EJ25 DOHC)

Features

• Manufactured from premium 8740 chromoly steel
• Heat-treated to a tensile strength of 190,000 psi
• Precision centerless ground and thread rolled to Mil-S-8879 specifications
• Includes 12 studs, 12 hardened parallel-ground washers, and 12 12-point nuts
• Black oxide finish for enhanced corrosion resistance
• Socket sizes: 9/16" 12-point, 4mm Allen
• Designed to withstand high-boost and high-horsepower applications
• Helps prevent head gasket failure by providing superior clamping force

Specifications

• Material: 8740 chromoly steel
• Tensile Strength: 190,000 psi
• Finish: Black oxide coating
• Socket Sizes: 9/16" 12-point, 4mm Allen
• Included Components: 12 studs, 12 hardened parallel-ground washers, 12 12-point nuts

Included Components

• 12x 11mm head studs
• 12x hardened parallel-ground washers
• 12x 12-point nuts
• Assembly lubricant

Product Description

The ARP 260-4701 Head Stud Kit is engineered to provide superior clamping force for Subaru's EJ series DOHC engines. Manufactured from premium 8740 chromoly steel and heat-treated to a tensile strength of 190,000 psi, these studs offer enhanced durability and resistance to stretching under high-stress conditions. The kit includes all necessary components for installation, ensuring a secure and reliable fit.

This head stud kit is compatible with a range of Subaru models equipped with the EJ20 and EJ25 DOHC engines, including the 2002-2014 Subaru WRX, 2004-2021 Subaru STI, 2009-2012 Subaru Legacy GT, and others. It is ideal for applications requiring enhanced clamping force, such as high-boost or high-horsepower builds. The black oxide finish provides added corrosion resistance, making it suitable for both street and track use.

Installation of the ARP 260-4701 Head Stud Kit helps prevent head gasket failure by providing a more consistent clamping force, ensuring optimal engine sealing. Whether you're rebuilding your engine or upgrading for performance, this kit offers the reliability and strength needed for demanding applications.