[shorty2tall]

Ok so I'm soon going to be buying a chip from y'all or one of ur vendors and was wondering which tune is better or saves more fuel?
Is the 65hp better for in town, and he 80 is better for highway?


---
- Patrick

[shorty2tall]

Bump


---
- Patrick

[cleatus12r]

The amount of stop-and-go driving you do is the criteria on which I'd base my decision. What you mentioned in the first post is usually how it goes.

We typically discourage paying for both DD calibrations as you'll end up only using one if you don't make a conscious effort to change the tunes for each type of driving.

[MEZICK3006]

I am having the same problem deciding. I bought my '99 (1/99 build date) for pulling my tractor to my hunting club. I figure it is in the 12,000 lb range. Probably the most I would ever tow. The route is mostly hilly interstate and then hilly backroads. I am thinking the 40HP HEAVY Tow is what I need.

However, I also want a tune for fuel economy/performance while not towing. Seems like the 80HP DD would fit the bill on interstate, which is where I will be driving most.

Definitely want the Stock, Whisper, Hi-Idle, 40 TOW, 80 DD

That leaves me with one slot. Which one? This is killing me. I want to order one SOON.

I don't care anything about smokin' tires and rocket launches. Just want a smooth, reliable, fuel efficient truck with some options.

I have a DIY tymar intake and 4" Magnaflo Turbo Back exhaust with muffler, 3" lift running 285's. PCM is NVK2.