ARP EJ20/EJ25 Main Bolt Kit | Multiple Subaru Fitments

Multiple Subaru Fitments EJ20/EJ25 Main Bolt Kit by ARP ARP High Performance Series main bolts are rated at 180,000 psi and a popular premium replacement for OEM fasteners. Designed to meet the exacting standards and demands of professional engine builders, ARP bolts are forged from 8740 chromoly steel and feature a reduced wrenching head, large underhead radius, and rolled threads for the utmost in reliability. The threads are rolled after heat-treating which gives them about 2,000 percent better fatigue strength than most main bolts that are threaded prior to heat-treating. Hardened parallel-ground washers are included with each kit. Features Constructed from High-Quality 8740 Chromoly Steel Benefits Improved Reliability even in Highly Modded Engines Applications 1989-1993 Subaru Legacy RS/RS-RA 1989-1993 Subaru Legacy GT 1992-1998 Subaru Impreza WRX (Incl. Wagon) 2002-2014 Subaru WRX 1993-1996 Subaru Impreza WRX RA 2005 Saab 9-2X Aero 2003-2009 Subaru Legacy GT 2007-2011 Subaru Impreza GT 2004-2021 Subaru WRX STI 2004-2006 Subaru Baja Turbo What's In The Box? 1 - Main Stud Kit Warranty ARP's Limited Manufacturer's Wawrranty