The standard power of your Opel Astra 2.2 DTI 125hp vehicle is factory 125 hp / 280 nm. After Opel Astra chip tuning custom vehicle software, your vehicle will gain +25 hp / +40 nm additional power and reach a total power of 150 hp / 320 nm. Since there will be no change in the exhaust emission values of your vehicle, there will be no smoke in your vehicle.