Can Modified Quad Exhaust Tips Pass Annual Inspection?

[Bentley]

Modified quad exhaust tips cannot pass annual inspection and are also illegal. Modifying car exhaust tips is considered part of altering the vehicle's powertrain system. According to traffic regulations, any modifications involving the powertrain system are prohibited, making exhaust tip modifications unlawful. Operations such as changing from single exit to dual exit or converting dual exit to center exhaust are not permitted. Most importantly, modifying the exhaust system may lead to excessive emission pollutants. Legal regulations impose restrictions on vehicle modifications: The vehicle model, engine model, and chassis number cannot be altered, and the body structure must not be compromised. If changing the vehicle color, replacing the engine, body, or chassis, the vehicle must be inspected. Replacement of the engine, body, or chassis requires submission of a qualified motor vehicle safety technical inspection certificate. Decals must not cover more than 30% of the total body area; exceeding this limit requires approval from relevant authorities. The vehicle's appearance must not be significantly altered and should remain largely consistent with the photo on the vehicle registration certificate.