To do a transplant you would need a bigger radiator, oil cooler, not to mention the computer system, and full wiring harness, it is all doable, just depends on how much time you want to put into it. I just built a ea81t for a brat, i hope to plumb it into the car by next friday. Yesterday i did a head gasket job on a ea82 and had it back in the car that same night, and delivered it to the costumer at 8 oclock this morning. I personally believe subarus are by far the easiest vehicles to work on.