If you ever want to turbo your engine you may want to talk to this guy.
http://www.andyforrestperformance.co.uk/index2.html
he is running a 3.6 at 1000bhp .
http://www.youtube.com/watch?v=6px1kJPDhNg
I guess he knows all the tricks when it comes to getting performance out of those 6 cylinder subaru engines and he is a really nice guy aswell.
Speedy