ARP Custom Age / CA625+ Head Stud Kit - for Toyota 2JZ-GE / GTE - 203-4301 HKS then stress relieved though additional

then stress relieved though additional manufacturing processes

providing better cylinder to cylinder consistency at low pulse widths

Outgrown the stock GT-R throttle bodies

Renowned among the Supra community

Part # PHR 01010813

ARP Custom Age / CA625+ Head Stud Kit - for Toyota 2JZ-GE / GTE - 203-4301 HKS then stress relieved though additionalARP Custom Age CA625+ Head Stud Kit for Toyota 2JZ GE GTE SKU: 203 4301 These are the go to upgrade for high horsepower built Toyota 2JZs. We use these studs in all of our builds over 900whp. WHAT IS CUSTOM AGE 625+? You may have heard of the popular L19 upgrade for Head studs, Main Studs, Rod Bolts, etc. The L19 material is stronger than the ARP 8740 or even ARP 2000 materials, however L19 is difficult to work with. You cannot touch L19 with your