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Ships within 48 hours · Estimated delivery Jul 30 - Aug 4
They are specifically designed to reduce weight and inertia for better engine response
Rated to hold Approximately 321 ft/lbs of Torque Measured at the wheels
Boost Correction Factor: eliminates boost drop off at high RPM
Recommended Use: Recommended for street and race use
2002+ WRX (Will not fit CVT)
ARP Head Studs for Subaru EJ20-EJ25 DOHC 625+ Injectors They are specifically designed toThis newly formulated super alloy demonstrates superior fatigue cycle life, tensile strength and toughness with complete resistance to atmospheric corrosion and oxidation. ARP is the first to develop manufacturing and testing processes for fasteners with Custom Age 625+. Best of all it is less expensive and expected to soon replace MP 35 as the material of choice in the high strength, super alloy field. Typical tensile strength is 260,000 280,000 psi.
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