The standard power of your Opel Astra 1.4 Turbo 140hp vehicle is factory 140 hp / 200 nm. After Opel Astra chip tuning custom vehicle software, your vehicle will gain +25 hp / +65 nm additional power and reach a total power of 165 hp / 265 nm. Since there will be no change in the exhaust emission values of your vehicle, there will be no smoke in your vehicle.