The standard power of your Audi A6 2.7 TDI 180hp vehicle is factory 180 hp / 380 nm. After Audi A6 chip tuning custom vehicle software, your vehicle will gain +40 hp / +80 nm additional power and reach a total power of 220 hp / 460 nm. Since there will be no change in the exhaust emission values of your vehicle, there will be no smoke in your vehicle.