There are no pro tuners for Subaru within 100 miles that I know of. Ed from EQ Tuning comes up here occasionally to do road tunes.
Accessport is the favorite EM on this forum for lots of good reasons. If you cannot afford one your only real choice is Romraider (formerly Enginuity) freeware along with a $79 Tactric cable, a laptop and buying some off-the-shelf stage maps for it. Some shop somewhere sells these maps, but I can't remember who.
I am not an intake basher like many Subie people... BUT be careful with off-the-shelf stage maps with the Injen CAI though.
It is known to run lean so it prolly works nicely with the stock pig-rich tuning, but with Stage 1 A/F ratios is will be very lean and possibly dangerous. If you get custom tuned then it will be fine.