Can a 2021 car pass the annual inspection after modifying the front grille?

[OLawson]

If a 2021 car's front grille is replaced with a Chinese-style grille, and the owner goes to the vehicle management office in advance to file the modification and updates the photo on the driving license, the car can pass the annual inspection. However, if the owner fails to file the modification in advance and does not update the photo on the driving license, the annual inspection will not be passed. Relevant regulations for modification procedures: Since September 1, 2019, modifying the front grille of a car is considered a legal modification. According to the latest "Motor Vehicle Inspection Work Regulations," during the registration and annual inspection, the actual appearance of the vehicle should match the photo, except for modifications to the front grille. If the vehicle's appearance does not match the photo on the driving license and the modification is done without authorization, it is illegal. Traffic police may impound the vehicle and order the owner to revert the changes. Article 16 of the "Road Traffic Safety Law of the People's Republic of China" stipulates that no unit or individual may assemble a motor vehicle or alter the structure, construction, or characteristics of a registered motor vehicle without authorization. Regulations that do not require modification procedures: Article 16 of the "Motor Vehicle Registration Regulations" states that under the following circumstances, the owner of the motor vehicle does not need to apply for modification registration, provided that the safety and identification of the license plate are not affected: small and micro passenger cars equipped with front and rear anti-collision devices; freight motor vehicles equipped with windshields, water tanks, toolboxes, spare tire racks, etc.; and increased interior decoration of the motor vehicle. In other words, except for the above cases, any modification to a car requires filing with the vehicle management office.

[DeMarcus]

Regarding whether modifying the front grille on a 2021 model car can pass the annual inspection, it depends on the specific situation. The inspection standards require that exterior modifications should not deviate too much from the original factory design. For example, if the grille size is altered, the shape is outrageous, or there are protruding sharp edges, it may be deemed illegal and fail the inspection. I often discuss this on car forums. The 2021 models have extensive electronic records, making it easier to check details. If the cooling vents are blocked, it might affect engine cooling and pose safety risks, leading the inspector to reject it. Modding is fun, but it's advisable to choose replacement parts with minimal changes or the same dimensions, or simply file the modifications with the vehicle management office in advance to avoid hassle later. Standards vary by region—some smaller cities are more lenient, while big cities are stricter—so checking with the local inspection station is more reliable. In short, don't ignore regulations just for looks. Safety comes first, and reverting to the original factory setup ensures an easy pass.

[JosiahRose]

Last year, I modified my 2021 car with a carbon fiber grille, thinking it would be fine, but it almost failed the annual inspection. The inspector said that altering the grille makes the car's appearance inconsistent, and exceeding the size limit by even 0.5cm can cause trouble. Luckily, I chose a subtle design that didn’t change the outline, so it passed—what a relief. But a friend tried a more extreme modification elsewhere and got rejected, wasting money. So now, I suggest measuring the dimensions with a professional before modifying anything—don’t rush into choosing parts. While a custom grille adds personality, inspection rules exist to prevent risks, like affecting ventilation or lighting. If you go too flashy, you might get flagged. If you really want to customize, pick parts that match the original size and are harmless. If they don’t pass, just swap back to the stock part—easy and worry-free.

[VonBarrett]

The main risk of failing the annual inspection due to a modified grille is that it may affect vehicle safety. The grille involves cooling system design; if modifications block air vents, it can cause engine overheating, which is strictly checked during inspections. The 2021 vehicle's original specifications are on record, and major exterior modifications may be deemed non-compliant. I recommend keeping it stock for the safest bet during inspection. If modification is a must, opt for professionally certified parts with no dimensional changes. Consult local inspectors to gauge leniency to avoid wasted effort. Prioritize safety over modifications.