Zerohour had an Outback and did some mods--as far as I know, more than anyone else on a Subaru, but he ended up replacing it with a Mini Cooper. I read the thread a few times, but I honestly do not remember what mods he did, although he was obsessed with build quality, so I do not think he got as far as some on here, but what he did, he did very well:
http://ecomodder.com/forum/showthrea...-5l-14034.html
Welcome!