2002 WRX AMR T60R Bolt-On Turbo?

You'll need a built block at the minimum engine wise. A built 2.5 liter would be better with a turbo that size and then you'll need to make some modifications to the heads so they mate properly. You will also need a built transmission or a 6 speed swap because there is no way your tranny will last long with that kind of torque. Then you need injectors, fuel pump, bigger intercooler, intake, turbo back exhaust, engine management and a good tuner. Must be nice to have $15,000 to $20,000 laying around