The standard power of your Renault Laguna 2.0 DCi 150hp vehicle is factory 150 hp / 340 nm. After Renault Laguna chip tuning custom vehicle software, your vehicle will gain +30 hp / +60 nm additional power and reach a total power of 180 hp / 400 nm. Since there will be no change in the exhaust emission values of your vehicle, there will be no smoke in your vehicle.