ARP 260-4702 Head Stud Kit for 1999-2007 Subaru WRX/STI, Impreza, Legacy, Baja

Vehicle Fitment

• 1999-2007 Subaru WRX (EJ253/EJ255/EJ257)
• 1999-2007 Subaru STI (EJ257)
• 1999-2007 Subaru Impreza (EJ253/EJ255/EJ257)
• 1999-2007 Subaru Forester (EJ253/EJ255/EJ257)
• 1999-2007 Subaru Legacy (EJ253/EJ255/EJ257)
• 2004-2006 Subaru Baja Turbo (EJ255)

Features

• Made from ARP 8740 chrome moly steel for superior strength
• Heat-treated to 190,000 psi nominal tensile strength
• Centerless ground for precision and consistency
• Rolled threads after heat treatment for improved fatigue resistance
• Includes 12 studs, 12 parallel-ground washers, and 12 12-point nuts
• Engineered for high-boost and high-horsepower builds
• Resistant to corrosion and oxidation
• Socket sizes: 9/16" 12-point, 4mm Allen

Specifications

• Material: 8740 chrome moly steel
• Tensile Strength: 190,000 psi
• Socket Sizes: 9/16" 12-point, 4mm Allen
• Finish: Black oxide for corrosion resistance
• Includes: 12 studs, 12 washers, 12 nuts, and assembly lubricant

Included Components

• 12x 8740 chrome moly head studs
• 12x Parallel-ground washers
• 12x 12-point nuts (8740 chrome moly steel)
• 1x Ultra-Torque fastener assembly lubricant

Product Description

The ARP 260-4702 Head Stud Kit is specifically designed for Subaru's EJ series Phase 2 SOHC engines, including the EJ253, EJ255, and EJ257. Perfect for high-performance builds, these studs provide enhanced clamping force for high-boost or high-horsepower applications.

Manufactured from 8740 chrome moly steel and heat-treated to 190,000 psi, these studs feature rolled threads for improved fatigue resistance and centerless ground precision. The kit includes all necessary components: studs, washers, nuts, and assembly lubricant for straightforward installation.

This kit ensures durable and reliable engine performance, making it an ideal upgrade for Subaru enthusiasts seeking performance gains and long-term reliability in their 1999-2007 WRX, STI, Impreza, Forester, Legacy, or Baja Turbo.