Better than a Cold air intake or cat-back that shows little to no gains. The AIR street tune should be first on your list of mods! Not all model years or vehicles are covered, call or text AIR to see if your Ford Vehicle can be custom tuned !!
I get this question asked all the time; "whats the difference between the dyno or street tune?" Answer is NOTHING. Both tunes will net you the best performance available for your ride. The Dyno will further enhance that tune, you'll see your car in action and have print out of your cars power and torque, and some cars simply cannot be street tuned only. A.I.R. recommends adding the Dyno to every tune!