Truck is great and the performance module works very well. The module has never set a code and makes up for the derate FCA/ Cummins does on these trucks. I haven't seen fuel savings on this, nor did I on any other performance upgrades I've used. I suppose adding more power and not seeing a loss translates to better fuel mileage in that more power without loss of mileage. I just always seem to use the increased powe
Just a cautionary note the manufacturers and sellers state this performance module will not work on C&Cs. In my case, ordered mine before this seller posted it not working on my truck.
As it turned out, mine worked out just fine and is a good deal at $600. Now I see its marked down $500. If you go this route, make sure the 100% satisfaction return in 30 days.
EDIT: As you can see in the link below, company advertises 45 day money back guarantee.
https://www.powerupdiesel.biz/Ram-Cummins-Mileage-Increase-p/drp-1318ram6.7.htm
I still like mine and still recommend it.
Cheers, Ron