Is modifying the exhaust system illegal?

[LaKylie]

Modifying a vehicle's exhaust pipe constitutes altering the registered structure of the vehicle and may result in penalties. Below is relevant information about automotive exhaust pipes: 1. Introduction: Automotive exhaust bellows, also known as flexible exhaust pipes, are installed between the engine exhaust manifold and the muffler. They provide flexible connections for the entire exhaust system, serving to reduce vibration and noise, facilitate installation, and extend the lifespan of the exhaust muffler system. 2. Classification: Exhaust pipes are generally categorized into: standard OEM pipes, backpressure pipes, semi-backpressure pipes, and straight pipes. 3. Function: Installed between the engine exhaust manifold and muffler, exhaust pipes function to reduce vibration and noise while prolonging the service life of the exhaust muffler system.