Has anyone ever used this software?One of my friends just bought the software and it has two subscriptions to it. So i'm thinking about spliting the cost with him so i can do a little tuning (since my car is running a little rich). Also just installed 3.90 gears and absolutely love them. I broke them in today was the first time i got on it and it was amazing. Anywho, just looking for any opinions on the tuner!