Hey folks, I want to know anyone's opinion on computer chips. My 2003 GT is stock except for a MAC CAI and 3.73's that I will be putting in this weekend. That is all the Mods I will be doing until next year when I will be doing nitrous. What are the best units for a Gt with my mods? If you read their web sites they all say 18 - 30 HP, is that bull? What is everyone else using in their late model Mustangs? What can I expect? Thanks.