Is It Legal to Add a Spoiler to a Sedan?

[Edgar]

Adding a spoiler to a car is considered an exterior modification and requires registration. The regulations and steps for vehicle modification are as follows: Modification Regulations: The new "Road Traffic Safety Law" clearly stipulates that no unit or individual may assemble a motor vehicle or alter the registered structure, construction, or characteristics of a motor vehicle without authorization. The structure of a vehicle includes the body color, length, width, height (four rigid standards), and relevant technical parameters of the engine. Modification Steps: Before modifying a licensed vehicle, the owner must register and declare the modification to the vehicle management office. The modification can only proceed after the technical report is reviewed and approved by the vehicle management office. After the modification is completed, the owner must also complete the modification change procedures at the vehicle management office. Whether the modification is legal depends on whether the vehicle matches the photo on the vehicle registration certificate and the factory technical parameters. If it does not match, the vehicle will not pass the annual inspection.