Which Car Modifications Are Legal?

[ClaireLee]

Here is a detailed introduction to the scope of legal car modifications: 1. Vehicle Appearance: Modifications include changing the body color or applying body wraps. The vehicle must be registered with the vehicle management office within 10 days after the color change, with new license photos taken and the vehicle license updated. However, the following colors are prohibited: fire engine red (R03 bright red), administrative law enforcement vehicle colors (white top with blue bottom), and engineering rescue yellow. 2. Bumpers: Front and rear bumpers are crucial, but modifications must not alter the vehicle's length or width. 3. Wheels: When modifying wheels, the rim size must remain unchanged, as altering it affects the car's power and performance and is illegal. However, rims of the same size can be replaced. 4. Interior: Modifications are allowed as long as they do not compromise driving safety. However, seats cannot be removed or added without authorization, and the structural characteristics registered with the vehicle management office must not be altered. 5. Roof Rack: Passenger cars can install roof racks no taller than 30cm. 6. Engine: If the engine is damaged or has quality issues, proof from a certified repair shop and the source of the replacement engine can be submitted for modification approval, but the engine model must remain unchanged.

[LaLandon]

I've always been interested in car customization, but you need to understand the rules to modify safely. Legal modifications mainly involve minor aesthetic changes, like applying wraps or changing colors—just avoid overly flashy hues or covering license plates, as they can cause issues during annual inspections. Interior upgrades are fine too; modifying seats or adding audio systems is acceptable, but never remove safety belts as it compromises safety. For lighting, you can replace taillights but keep their original colors, and while increasing headlight brightness is allowed, avoid overly dazzling beams that disturb others. Wheel and tire adjustments are permitted as long as they maintain the original size and aren’t excessively wide. Modifying air filters or simple exhaust tuning must also keep noise within legal limits. Remember, avoid engine performance tweaks or ECU remapping—those gray areas attract scrutiny. I usually advise friends to start with these small, compliant modifications to personalize their cars without breaking rules, keeping safety the top priority.