Nationally Permitted Vehicle Modification Scope?

[AdelineFitz]

Legal vehicle modification scopes are as follows: 1. Exterior decals: For example, vehicle wraps and stickers are considered legal modifications. However, if the decal area exceeds 30% of the vehicle body, approval from the traffic police department or vehicle management office is required. 2. Installation of front/rear anti-collision devices: Small and micro passenger vehicles can install front/rear anti-collision devices without registration modification, provided they don't obstruct or indirectly obstruct license plates. 3. Interior modifications: Generally, interior modifications that don't affect vehicle safety structure don't require approval, such as full leather interior replacement or installing sport kits.

[VanAdriel]

I've repaired many cars before. According to national regulations, vehicle modifications should be done cautiously. Permitted modifications are mainly in areas that don't affect safety and core components. For example, you can change wheel rims but the size must match the original factory specifications, otherwise it won't pass annual inspections. For exterior wraps or color changes, you need to register them with the DMV - avoid large areas of bright patterns or you might get stopped by traffic police. Interior modifications like changing seat covers or adding floor mats are generally fine, as long as you don't tamper with the airbag system. But it's absolutely forbidden to modify the engine, braking or exhaust systems - those could cause accidents or result in fines. I recommend checking the latest traffic laws before modifying, or consulting at a legitimate modification shop to avoid wasting money and causing trouble. When driving, safety always comes first - these small modifications are enough to personalize your car, no need for major changes.

[LaBrandon]

As an avid car enthusiast who loves tinkering, I've personally experienced the restrictions on modifications imposed by the country, primarily to ensure driving safety. Permitted modifications include installing roof racks, but registration procedures must be completed; changing wheels as long as they don't exceed the size limit; or making minor interior adjustments that don't affect driving. However, never tamper with the exhaust pipes or engine—it's not only illegal but also pollutes the environment and can lead to fines. I know someone who was caught modifying their exhaust illegally and not only got points deducted but also had their vehicle temporarily impounded. Before making any modifications, it's best to refer to the guidelines on the local DMV website or app to understand the detailed scope, so you don't regret it like I did at first.