The standard power of your Peugeot 306 2.0 HDi 90hp vehicle is factory 90 hp / 205 nm. After Peugeot 306 chip tuning custom vehicle software, your vehicle will gain +26 hp / +55 nm additional power and reach a total power of 116 hp / 260 nm. Since there will be no change in the exhaust emission values of your vehicle, there will be no smoke in your vehicle.