If you don't have a tune yet, you are missing out. If you get a tuner, you can do the KAM reset instead of disconnecting the battery, If it feels like your throttle response is sluggish or car is slower. Also when you get use to your car/its power...if feels like it's lacking but it's not. Go drive a slow 4 banger for a month, then jump back into your car.
2014 Mustang GT, A6, Grabber Blue