[Jwest45]

If I order custom tunes for my truck in its configuration now, and then add modifications to it later (exhaust, e-fans, pullies, etc.), will I have to order and wait for brand new tunes, or just have the current ones changed? How does that work?

Thanks

[JackandJanet]

You need to be more clear on the mods you are considering. E-fans and pulleys won't change the tune. Neither will any kind of "cat-back" exhaust mod.

But, if a mod does require a new tune, it has to be completely rewritten, at the cost of a new tune. It is not "modified".

- Jack

[Jwest45]

Ok thanks. And yeah I def plan on adding e-fans and maybe some pullies later, and eventually have a limited slip installed in the rear, and have the truck lowered with a different set of wheels and tires, but that won't be for awhile so I will just have a new tune made for those things if needed.

Right now, I just have the Gotts mod and straight pipe from the stock Y back, which I plan on installing a true duel setup with crossover before I order my custom tune.

[ticopowell]

none of those modifications require retuning, but if you do headers or anything big like that then you will need new tunes

[88Racing]

Originally Posted by Jwest45

Ok thanks. And yeah I def plan on adding e-fans and maybe some pullies later, and eventually have a limited slip installed in the rear, and have the truck lowered with a different set of wheels and tires, but that won't be for awhile so I will just have a new tune made for those things if needed.

Right now, I just have the Gotts mod and straight pipe from the stock Y back, which I plan on installing a true duel setup with crossover before I order my custom tune.

Those adjustments can be made through the use of the custom options menu....