The standard power of your Ford F-350 6.7 V8 400hp vehicle is factory 400 hp / 1084 nm. After Ford F-350 chip tuning custom vehicle software, your vehicle will gain +40 hp / +56 nm additional power and reach a total power of 440 hp / 1140 nm. Since there will be no change in the exhaust emission values of your vehicle, there will be no smoke in your vehicle.