tg5spd

I'm considering getting a CAI/tune + gears in the near future for my 07 GT. Does anyone have any good experiences/recommendations with a particular Ford dealership in the Birmingham, AL area as far as dealing with modded Mustangs? I don't want to have to worry about this when the time comes. I got my car from Long Lewis (highly recommend) but not sure about the svc dept there. Also, has anyone leta Ford dealership around Bham install gears for them, if so which dealer? Any help would be appreciated!