What is the difference between a single and dual exhaust pipe on a car?

[MacSerenity]

Vehicle exhaust pipe quantity differences are primarily due to varying engine displacements and differences in noise reduction effects. Below are additional details: 1. Function of exhaust pipes: Cars have different engine displacements. In high-displacement vehicles, more air is drawn in during the intake stroke, resulting in more exhaust gases after combustion. To efficiently expel these gases, a thicker exhaust pipe is necessary. If the exhaust pipe is too narrow, it may hinder smooth exhaust flow, thereby affecting engine performance. Some vehicles require even more exhaust capacity, leading to the addition of a second exhaust pipe, hence the emergence of dual-exhaust vehicles. 2. Noise reduction effect: Vehicles with dual exhaust pipes generally produce slightly less exhaust noise because each pipe has its own muffler at the end. The exhaust gases are split between the two pipes, each passing through its respective muffler, resulting in better noise reduction compared to a single exhaust pipe.