Can an aftermarket mushroom air intake pass the annual vehicle inspection?
2 Answers
No, modifications such as altering the intake and exhaust systems, widening the car body, lowering the chassis, changing braking components, or blindly upgrading high-beam headlights, which change the vehicle's technical parameters, are not legal under regulations and will not pass the annual inspection. Below is relevant information: Vehicle annual inspection: Refers to a mandatory inspection for every vehicle that has obtained an official license plate and registration certificate. The annual inspection helps to promptly eliminate potential safety hazards, encourages better vehicle maintenance, and reduces the occurrence of traffic accidents. Origin: The mushroom air intake, also known as a high-flow air filter, is colloquially called 'mushroom head' because of its resemblance to a mushroom growing in the ground. Function: It is a filtering device installed in the engine's intake system, primarily used to filter air and increase air intake.
I've been driving for almost 20 years and have modified many components, including the mushroom head intake system. During annual inspections, such modifications often cause problems, as they tend to exceed emission standards. I've noticed that the additional intake can lead to incomplete combustion in the engine, increasing pollutants in the exhaust. Once, after a modification, my car failed the inspection because the CO levels were too high, and I was sent back immediately. Now I've learned my lesson—before the annual inspection, I always revert to the factory settings or use certified aftermarket parts. Remember, the inspection doesn’t just check emissions; it also examines brakes and lights, and obvious engine modifications will draw attention. Safe driving is far more important than a slight power boost—don’t create trouble for yourself. When modifying, choose reversible options or check local regulations.
