Outfront Custom Subaru ARP 2000 1/2" Head Stud Kit

- 25% stronger than 625+ stock diameter studs and 40% stronger than stock diameter 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

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

*Requires Machining to the engine block and heads*

Applications: DOHC Subaru EJXX Engines