Tuning

[2002montrealGT]

I am looking for advice on which tuner to buy performance wise. I have a new set of exhaust/o/r h pipe/ long tube headers
New air filter, 4.10 gears ( speedometer need calibration). After some research I assumed bama tune X4/SF4 would be the best but I am still not sure

Also, I will be changing the Throttle body this summer aswell. Does tuning it a second time require as much time or more money?

I am a real newb on tuning car

 

[98Mustang2017]

All i can say about is if you have forced induction they will not tune for you. I have to learn the real hard way and tune myself. Should be interesting.
It claims to have Free Tunes For Life.