Im looking at the jlt gt cai and sct sf3 tuner combo from latemodel , is anyone using this and do tou like it,also if i buy it and later go to 373 gears will the tuner need an update
thanks

 

Latemodel offers tunes from BBR, what you need to do is to tell them to leave the tune unlocked so you can adjust for the gears yourself when you get them.

 

You might want to check out the CAI/Tune packages from Brenspeed or American Muscle/Bama. They are the two top rated tune writers around these parts.

If you have a manual, you just need to use the tuner to adjust the gear ratio. IF you have an auto, you need an updated tune to change the shift points.

 

AmericanMuscle has this combo on sale right now and offer LIFETIME tunes if you purchase the combo. I just ordered mine so you might want to look into it.

 

+1 on AM or Brenspeed. Don't be as concerned about the handheld as you are about who writes the tunes.

And the handheld should allow you to adjust for gear chnages and tire OD changes.