What is the function of the engine exhaust pipe?

[LaLaila]

The functions of the engine exhaust pipe are as follows: 1. It can discharge the exhaust gas generated in the engine and reduce pressure, which is an important guarantee for the continuous operation of a vehicle. 2. Noise reduction: There are two noise reduction systems in the entire exhaust system. The first is the exhaust manifold that uses the exhaust gas discharged from the engine, and the second is the main muffler at the tail of the exhaust pipe. After these two steps of noise reduction, the sound of exhaust gas discharge can basically be reduced to a reasonable range. 3. Filter exhaust gas and reduce pollution: There is a three-way catalytic converter in the middle section of the exhaust pipe. The substances inside it can undergo chemical reactions with the harmful substances in the exhaust gas, thereby reducing the pollution of the exhaust gas discharged into the air. 4. Make the vehicle look more aesthetically pleasing. Even the difference in shape between round and square can lead to price differences in cars, which shows how much importance people now place on aesthetics when buying a car.