Who cares if it "only" has 215 or 220 bhp? 0-60 in 5.5 is pretty fast. It's "only" 50 more ponies than that wonderful chassis gets now. Plus, how many of us are going to leave it stock????
With the aftermarket for the EJ20 motor, I should think it will be pretty easy to get it to around 275-280bhp. In an AWD car that weighs less than 3000lbs, that is PLENTY.