The standard power of your Mercedes-Benz GL 320 CDI 211hp vehicle is factory 211 hp / 510 nm. After Mercedes-Benz GL chip tuning custom vehicle software, your vehicle will gain +49 hp / +90 nm additional power and reach a total power of 260 hp / 600 nm. Since there will be no change in the exhaust emission values of your vehicle, there will be no smoke in your vehicle.