The standard power of your Audi A6 2.7T 250hp vehicle is factory 250 hp / 350 nm. After Audi A6 chip tuning custom vehicle software, your vehicle will gain +65 hp / +130 nm additional power and reach a total power of 315 hp / 480 nm. Since there will be no change in the exhaust emission values of your vehicle, there will be no smoke in your vehicle.