Did i miss something????????

[cookie man]

I'm a newbie so forgive my ignorance.. Just did some " modifications " to my truck. I have a 2008 cummins . I tow a 20ft enclosed trailer every day for work. I ran the " full " tow tune on my efi autocal last week. Don't really notice that much of a difference in mileage or performance with the truck. Any thoughts?

[DAVe3283]

Who did the tuning? You should probably be asking them. We have no way of knowing what they programmed in to the autocal.

You can probably ask them for a more aggressive tune.