This is what I've come up with for my 02 WRX, if anyone wants to look it over and comment that'd be great. Standard warnings, use at your own risk, don't just flash this to your car, blah, blah etc.
Stock intake box with GP moto elbow and K&N filter
Cobb catted downpipe
Gutted up-pipe
Sti catback
93 octane
LC at 5000 rpm
18 psi
With this ROM I ran 13.26 @ 101.9 w/ 1.78 60' at one track and 13.27 @101 at another in the same week. It drives fairly stock at normal speeds but comes on strong at WOT. The timing is kind of aggressive and the fuel is still fairly rich, since I don't have a wideband to monitor it. What I've done is logged the G/rev a lot and set it up so it goes into the highest cell on the timing map only in 4th gear where it make more boost so it doesn't knock. It makes 18 tapering to 14 in 1-3 and 18 tapering to 16 in 4th. It makes 10 psi against the LC. The advance map is flat, I know some don't like that, but it is easier for me to tune that way. The car is dead quiet and looks stock, fools a lot of people.

I think with a wideband leaning it out, it could be a little quicker, maybe someday.