Are you worried about this? Q: Can I install it by yourself? A: Just plug it into the OBD port of your car, so you can install it by yourself. Q: Is the product still installed after installation? A: After installation is completed, you can remove and store the OBD port. Q: Can I check it with the state of the installation? A: No problem.Our actual vehicle is shipped to dealers over and over again. Q: Does it be possible to avoid any defects after installation? A: It is not a special program to be rewritten, and since it has been changed to the original system where it can be changed, there is no need to worry about causing any defects. Q:Will I help you after buying? A: Professional staff can be supported even after purchase.When you buy it, you wont be over! Q: Is it possible to return the original product? A: The function can be switched on and off even after many times of the same vehicle, so you can always return it to its original condition when checking a car or dealership.