I need someone to tune my STi when I upgrade the turbo. As of now the plan is APS SR55, FMIC, feul system upgrade, ACT street clutch, etc etc. I'll need someone to tune it for under 400 WHP who knows what they are doing. I'll have the Cobb street tuner softeware upgrade when it is available.
You're going to probably need a dyno to tune a car like that reliably... Check out some of the stuff on wrxhackers including the UTEC tuning guide.. It has a LOT of good information about tuning, etc... Should give you an idea of what you need to do at least. You will definitely need a wideband obviously. If you read up on it you can probably get it tuned yourself