The standard power of your Audi A6 3.0 TDI Quattro 204hp vehicle is factory 204 hp / 400 nm. After Audi A6 chip tuning custom vehicle software, your vehicle will gain +56 hp / +200 nm additional power and reach a total power of 260 hp / 600 nm. Since there will be no change in the exhaust emission values of your vehicle, there will be no smoke in your vehicle.