Does modifying the exhaust require registration?

[OAva]

Modifying the exhaust does not require registration. Here are the relevant details: Introduction: Modifications to the exterior of a car's exhaust pipe do not need to be registered with the vehicle management office, as these modifications do not affect the vehicle's performance and are purely decorative. Installing roof racks, adding side steps for SUVs, or fitting front and rear bumpers on smaller vehicles—as long as they are not overly prominent, do not exceed the original length and width of the vehicle, and do not compromise safety—are not considered modifications. Additional Information: Changing the car emblem, adding lighting devices, or installing xenon headlights—any alterations that change the fundamental characteristics of the vehicle—are illegal. For example, replacing a domestic car emblem with a Mercedes-Benz logo or adding an original Toyota emblem are illegal modifications. Enhancing the vehicle's aesthetic lighting by adding LED lights on the roof or other parts of the body, or replacing the factory-installed headlights with excessively bright xenon lights, are common illegal modifications that require attention. These are all considered illegal modifications.