Pay in 4 interest-free payments of $75.00 Learn more
Ships within 48 hours · Estimated delivery Aug 23 - Aug 28
Boost Correction Factor: eliminates boost drop off at high RPM
please verify vehicle compatibility in Confirmed Applications
Price includes:
These are heat treated to a hardness of 26-32 HRC and then cyro treated for improved physical properties
ARP Head Studs for Subaru EJ20-EJ25 DOHC 625+ Injectors Boost Correction Factor: eliminates boostThis 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.