
In principle, it is not allowed as it constitutes illegal modification. Here is some information about vehicle modifications: Unauthorized changes to vehicle parameters are considered illegal modifications. Modifications such as altering tires and rims, adding spoilers, changing lights, or modifying exhaust pipes are all classified as illegal modifications. These must be reverted to their original state to pass inspection. Additionally, penalties such as fines and license suspension may be imposed. Legal basis: According to Article 97 of the Road Traffic Safety Law of the People's Republic of China: No unit or individual may assemble a motor vehicle or alter the registered structure, construction, or characteristics of a motor vehicle without authorization.


