Oh thanks! Yeah, I should've mentioned this IS one of the last of the 5.9s.

I may take you up on that.
Again, just not sure if this is worthwhile. I do have a car for usual daily driving and I don't expect even a chipped truck to touch it. I don't need power, I was just more thinking mileage, but I honestly haven't really thought much about this in (?) 6-7 years, so just hoping to get some thoughts and opinions.