The standard power of your Citroen C3 1.4 HDi 8V 70hp vehicle is factory 70 hp / 150 nm. After Citroen C3 chip tuning custom vehicle software, your vehicle will gain +20 hp / +50 nm additional power and reach a total power of 90 hp / 200 nm. Since there will be no change in the exhaust emission values of your vehicle, there will be no smoke in your vehicle.