The standard power of your Opel Astra 1.7 CDTi 100hp vehicle is factory 100 hp / 240 nm. After Opel Astra chip tuning custom vehicle software, your vehicle will gain +30 hp / +55 nm additional power and reach a total power of 130 hp / 295 nm. Since there will be no change in the exhaust emission values of your vehicle, there will be no smoke in your vehicle.