Cars can be modified within the scope prescribed by law. Modified car that wants to drive normally on the road: Don't change the color and appearance of the original car excessively, and it should be basically consistent with the photos on the driving license. Do not change the power plant and braking system of the vehicle without authorization. It is not unsafe to install hernia headlights now (unless it is the original car configuration). The key is whether to install lenses, otherwise the light source will diverge, affecting the other vehicle and causing glare. The cost of installing the lens is too high. Therefore, most car owners choose to directly install hernia headlights with high K number. If you want to modify the car, you can still examine it annually, mainly in several categories. Light modification, also called car decoration, has little effect on car inspection, while changing the machine and the intake and exhaust system may not be able to inspect the car smoothly, while the basic owners of heavily modified cars will not have annual inspection. Just go to the vehicle management office to go through the formalities after modification.