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Description:It works based OBD2 protocols as remaping the Car's computer ECU. After driving 200 km road total， CHIP TUNING BOX adjusts itself to the car， according to the drivers' habits and always keeps remaping the ECU to increase the performance of engine. Feature:Manufactured after 1996 year.OUR CHIP TUNING BOX does not exceed the manufacturer’s requirements. It works only within the tolerance of the engine.OUR CHIP TUNING BOX finds out the hidden power of your car. THIS CHIP TUNING BOX does not damage the engine and the car‘s computer ECU or not cause any negative effects to the car factory setting.OUR CHIP TUNING BOX does not change any of the settings permanently. To turn back to the car's original settings， just unplug CHIP TUNING BOX from OBD2 connector.CHIP TUNING BOX finds out the hidden power of your car.- Up to 35% more power- Up to 25 % more torqueNOTE: Increasing of the power and torque depending of your car's model and driving habits can be different.Easy installation1.Insert the car keys.2， to find your car OBD2 connector， and then plug in this device3， the key to the first step: insert the key into the ignition and twist(don't start the car)4， Press the reset buttom for about 5 seconds， after the release button， wait for a moment， about 30 to 54 seconds (the device will communicate with the ECU to establish connections)5， start the engine.6， This device will recognize your car and your driving habits， after a speed of about 200 km / 150 miles，It will adjust itself， more fuel-efficient perfect to match your car.Package:1 x Car Chip Tuning Box