Professional Eco OBD2 Economy Chip Tuning Box for BENZINE Car EcoOBD2 is a Plug&Drive Ready device to reduce fuel consumption for the economy and lower emission for the world. Up to 15% Fuel Save. It is also a very easy used tool. Just Plug EcoOBD2 into OBD2 connector of your car, turn the ignition on for 30 seconds, turn the engine on .EcoOBD2 will recognize your vehicle and your driving habits after around 200 km/150 miles driving, and then adjusts itself to match your car perfectly. Compared with the Remapping tuning methods,the EcoOBD2 Chip Tuning Box is easily removable,after unplug you go back to the factory settings. EcoOBD2 is the cheap and safe type of tuning. Remapping is a permanent change to your car.Remapping tuning methods is expensive and you cannot remove it. EcoOBD2 does not damage the engine , the car and the computer ECU. In a word, it will not cause any negative effects to the car factory setting. EcoOBD2 produced on the printed circuit board in SMD technology. EcoOBD2 Chip Tuning Boxes are also high quality. We Warranty against defects for TWO years! If you have any questions, just contact us.