1. I've heard of Adrenaline, went to the shop and all I saw were Hondas.
2. The guy that blew his piston landings ... if his car is an 08 STi ... that might be why. I have an 08 as well and had the same issue (it's a known issue with the 08 STi) - had to rebuild with forged piston
3. What kind of mods and power goals do you have in mind?
4. I agree with evil