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Is it illegal to convert a naturally aspirated engine to a supercharged one?

1 Answers

AddysonLee

07/30/25 1:17am

If the original car is equipped with a naturally aspirated engine, adding a supercharger is considered illegal. This type of modification involves extensive work and numerous changes, especially since there is no designated installation position for the supercharger, no supporting parts, and no matching supercharging program in the car's computer. When modifying a vehicle, the following points should be noted: For body color modifications: Owners must comply with national regulations by registering the new body color with the vehicle management office and updating the corresponding records. Additionally, the body color registered on the driving license must also be changed. Another important consideration is avoiding the use of colors reserved for emergency vehicles, such as yellow for rescue operations, and the white-and-blue combination used for law enforcement vehicles. Audio system modifications: Besides body color, audio system modifications are also a common type of vehicle customization. Since audio modifications do not alter the vehicle's exterior, they are generally safer and more legal. However, it is crucial to pay attention to electrical safety during installation, as short circuits in the car's wiring can lead to severe consequences. Spoiler installation: Adding a spoiler can effectively reduce air resistance, thereby decreasing lift and improving driving stability. According to vehicle modification regulations, spoiler modifications are permitted. China maintains certain restrictions on vehicle modifications. For example, modifications to the engine, chassis number, wheel axles, and other critical components are strictly prohibited.

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