I have a 22 international LT 625 with a Cummins X 15 motor in it.
I’m looking around for tuner, with a mind specifically to increase my fuel economy, and I’m wondering if anybody knows any products specifically that would suit my purposes?
I saw the PDI big boss tuner but I don’t want to spend $2500 on that piece of equipment if there are any other similar products on the market for a more reasonable price.
so, drivers, what you got?

