I appreciate the help. What can't you use with the tuner out of the box? (i.e. pullies, throttle bodies, etc.)

Well I have some bad news...
I live in ATL and anyone who's lived or visited here knows that the average highway speed is around 75+, and everyone drives like @ssh0les. To make a long story longer I had to cross 4 lanes of traffic in a hurry so I had to gun it. When I opened it up, my car sounded ...

I have an 06 Mustang v6 w/ the BBK and dual exhaust w/ GT Mufflers . I updated my tuner to the latest revision, used the 93 tune w/ +12 MAF and I had no issues. I started w/ +5 and incremented until the light went off. It took a weekend but it was worth it.
When I'm cruising I get better mpg. There ...