I don't care about being a reliable DD. I have a ton of cars, this doesn't need to be on the road every day. And i hate American cars. Iv had them, i prefer Japanese. You don't need more than 4cyl if you build your motor properly. I make more power now than most 8cyl cars and i run just fine. I just want more. Stock sleeves blow up around 600whp, so a nice sleeved shortblock will help in the end goal. I have a few friends that are running similar setups and make over 800whp with relatively close tq. It can be done. Its just the average Subaru owner does not have deep enough pockets to do it. And if they do, they do it half assed and blow up 3 pulls into tuning. STi's aren't cheap to build, thats why you rarely see anything over 5-600whp. But it can most certainly be done.