The APR Head Studs are available for the legendary 2JZGTE. If you are planning on making north of 600 HP, then the ARP Head Studs makes for a wise investment. If you are trying to go above 1000HP which was yesterday's news with the 2JZ, then ARP Head Studs are mandatory. If you bolt on a big single turbo kit, add all the fuel, and get a solid tune on stock head studs, you will make all the horsepower but you will risk lifting the head.
This kit includes a full set of head studs, as well as the washers, nuts, and assembly lubricant.