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)