What mods for better fuel economy on 6.0
I just bought a 2006 ford f-350 with a 6.0 powerstroke with an automatic tranny, im wondering what mods i could to improve my fuel miledge. im gonna put a 4" straight pipe on it, guages, and a tuner also but im not sure what tuner to go with. any imput would be greatly appericated.
Thanks,
Ross