Ok so i was sleeping last night and dreaming about taking my car out to the track but if i was to get a tune for an 05 GT stang and its an automatic so the tuner would change my shift points. But what if im running a 93 race tune and like i said my shift points are difference from stock, would there be any need to have my O/D switch then? would the person whos tuning my car disable it? Im just wondering how the O/D switch works with a tune and an auto. Or would it be possible to have my stock/DD tune on and wire it so when i press my O/D off/on button it switches to my tune? now that would be sick!