ecoOBD2 Plug & Drive OBD2 Economy Chip Tuning Box

This is the ecoOBD2 Plug & Drive OBD2 Economy Chip Tuning Box for gasoline cars. It works based on OBD2 protocol to adjust the ECU for better fuel saving. It claims up to 15% fuel save. Installation is simple; just plug it into your car's OBD2 connector.