+1 on 5 star. I used them on my last Ranger and I am currently getting my X4 unlocked so I can use it on my new one. SCT charges $150 to unlock it so you can use it on a different VIN.

I think it's $125 for a tune from 5 star. each additional tune is $10.

I used MorePowerTuning for a previous Ranger as well, but I don't think they do Rangers anymore.

__________________
2004 FX4 Level II