I. Working principle   The power upgrade box is based on the OBD2 protocol and works by remapping and adjusting the on-board computer. After driving 200km, the power upgrade box will automatically adjust to adapt to the car driving computer according to the owner's driving habits, so as to enhance the engine performance. According to the owner's driving habits, this product can readjust the driving computer ECU to achieve the purpose of increasing engine power. It will automatically adjust according to the increase of the mileage of the car, in order to adapt to the change of the driver's driving habits, and achieve the optimal effect of increasing power.   II. Product Introduction   Power Upgrade Box is a small power upgrade box that can be plugged and played. When the product is inserted into the OBD interface, it can automatically read the data of the ECU of the vehicle computer. Through the data of the ECU, it can adjust the supercharging pressure, fuel quantity, injection time and pressure to increase the performance of the engine. This product only discovers the hidden conservative power setting before the car leaves the factory, and only works within the limited power range of the engine. It will not cause any damage or other adverse effects on the engine and the ECU. If you want to restore the factory Settings, just unplug the device.   III. the main function   Red Yellow: 35% increase in power, 25% increase in torque (theoretical value, depending on vehicle condition and driver habits)   Green Blue: Economical fuel savings of 15% (theoretical value, depending on vehicle condition and driver habits)