ARP Head Studs | 02-18 WRX/STI

ARP head studs increase strength and reliability preventing common head gasket failures that are usually attributed to the cylinder pressure increases seen when boosting the performance of your EJ20/EJ25 engine. Whether you’re already pushing the limits of the stock head bolts or simply wanting to add some reassurance to your build, these studs are a sure way to keep your heads fastened to the block preventing costly future repairs. Material Options: Standard  8740 Chromoly construction with a rating of 190K+ tensile strength ARP 625's (Custom Age) Super alloy corrosion resistant formula with a 260K+ tensile strength rating Features And Benefits: Increased Strength & Durability Up To 260KPSI Tensile Strength Rating Complete Kit For The 02-14 WRX & 04-18 STI