ITEM NAME:OBD2 Chip Tuning Box Benzine Economy Saver Fuel Saver fit for Petrol Car Green OBDII OBD 2 ECU Plug and Fuel Saving Chip Tuning Box Benzine Economy Saver for Petrol Car Gasoline Car SPECIFICATIONS.Fit for Benzine Car after January 1st, 1996 in the USA. This item is a Plug & Drive Ready device to function the decreasing the fuel consumption of your car, saves 15% fuel for Benzine cars. it works based OBD2 protocols as remapping the car's computer ECU.