vauxhall Insignia in today for a custom stage one remap with EGR and DPF software solution. Going from 140BHP and 300NM Going to 200 and 410NM torque Saving up to 10mpg extra but can’t guarantee the exact amount you will gain as every car is different. This will show more in the summer, warmer months, as using heater, heated windows, heated seats can use more mpg. * Performance gains are commensurate with age, mileage, and condition of the vehicle, along with environmental conditions and grade o