If it hasn't already been posted, add EFI Logics in CT to this list of great tuning shops.
EFI Logics - Connecticut's Premier All wheel drive Dyno Tuning, Service, and Race car facility. SCT Tuning, Subaru Tuning, Mitsubishi Tuning in Connecticut and New England
I'll third it. EFI Logics is a pretty stand up shop and the guys are very knowledgeable and take a lot of pride in their work. There's a reason guys are starting to come from out west to get their car's built here! I can't wait to bring my Forester here too.I second that, very good word of mouth and a very knowledgeable staff.