Is Grille Modification Legal?

2 Answers
RobertDella
07/29/25 8:50pm
Grille modifications are legal as long as they meet certain requirements. Here are the requirements for modifying a grille: 1. The modified grille must be a style that has been filed by the manufacturer: Many cars offer optional sport appearance packages or exterior accessories when purchasing, and these exterior parts have already been filed with the vehicle management office by the manufacturer. 2. The modified grille must not alter the length or width of the vehicle: According to the latest "Motor Vehicle Inspection Work Regulations," grille modifications are now within the legal scope, but it is important to ensure that the modified grille does not change the vehicle's length or width.
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DiLeilani
08/14/25 6:26pm
I often help friends with car modification questions. Whether a grille modification is legal depends largely on local traffic regulations and specific operations. For example, in China, according to the standards of the Motor Vehicle Operation Safety Technical Conditions, modifications must not alter the vehicle's original certified structure, compromise safety performance, or obscure important identifiers. Many car owners change their grilles for personalization, but if the modification blocks the license plate, alters the crash beam design, or interferes with headlight visibility, police inspections can result in fines or even penalty points. Some regions have particularly strict annual inspections, and non-compliant grilles may fail the test. Safety-wise, improper modifications can affect cooling systems or increase accident risks. It's advisable for car owners to check local traffic regulations beforehand, consult professional modification shops, and choose certified products. Avoid cheap, substandard parts to save money, as they may lead to higher repair costs later. For DIY modifications, keep photos of the original parts as evidence in case restoration is needed.
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