re: F-250, 6.7 baws. A question on mpg

I had a 19 F-250 and averaged 14mpg. Now have a 22 Ram 2500 and average 17mpg. I know there are tuners for a Ram that does not involve removing emissions so that in states that require testing the vehicle still passes. From reviews I’ve read there are good power and fuel mileage gains. Not sure if they’re available for an F-250 but I would assume they are. Look up emissions compliant and emissions intact tunes.