Outfront Motorsports Pro Series 1-2" Head Studs for EJ and FA 625+ Intake Manifolds and Accessories Vastly improved harmonic stability with

Vastly improved harmonic stability with inherent self-damping design

dyno and track torture tested with over 10 years of success to become the highest flow pickup on the market

High spring frequency to allow for better spring surge control at high rpm

The price includes a $75 core charge for the pan and pickup

5D boost control with three switchable tables

Outfront Motorsports Pro Series 1-2" Head Studs for EJ and FA 625+ Intake Manifolds and Accessories Vastly improved harmonic stability withNow Available!!! With the growing success of our ARP2000 studs we bring you the Pro Series 625+ Headstud Kit. These are the go to for 1000+ HP Subaru Engines Benefits: 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