Outfront Motorsports Custom ARP Head Stud Kit Subaru WRX 2002-2021 / STI 2004-2021/ BRZ / FR-S

Product Description

Part #: OUT-ENG-HEADSTUDS

In conjunction with ARP, Outfront Motorsports has an exclusive design with our specs and innovative design. Look for our markings, accept no imitations.

Fitment:

2002-2018 WRX

2004-2021 STI

2005-2009 Legacy GT / Outback XT

2010-2012 Legacy GT

2004-2013 Forester XT

2003-2006 Baja Turbo

2013-2017 BRZ

2013-2016 FR-S

Benefits:

25% stronger than 625+ studs and 40% stonger than 11mm ARP 2000's

reduced shank diameter (allows for no head gasket modifying)

more thread engagement in block over 11mm studs

uses stock alignment pins without modifying case or heads

over 200ft/lbs tested for stud "pull-out" in block

same kit price compared to 625+ kits (requires additional block and head machining to use)

custom large diameter hardened washers to prevent embedding into head under heavy torque values and HP levels

Note, block machining must be performed as bare cases (can not be performed after shortblock is assembled)