What are the pros and cons of modifying the exhaust system?

[SanMaverick]

Pros of modifying the exhaust system: 1. Enhances visual appeal; 2. Improves auditory experience; 3. Reduces exhaust backpressure, benefiting vehicle performance at high RPMs. Cons of modifying the exhaust system: 1. If the catalytic converter is altered, the vehicle may fail emissions tests; 2. Modifying the muffler can change exhaust backpressure, affecting exhaust noise and potentially causing abnormal sounds; 3. Changes in the weight of the entire exhaust muffler system can alter vibration and noise, and may lead to fractures during use. Functions of the exhaust pipe: 1. Reduces vibration and noise, extending the lifespan of the exhaust muffler system: When exhaust gases leave the engine at high pressure, they produce unacceptable noise levels. The exhaust pipe plays a key role in noise reduction. 2. Emissions control: Its core components are the catalytic converter and muffler. The catalytic converter transforms harmful gases like CO, HC, and NOx from vehicle exhaust into harmless carbon dioxide, water, and nitrogen through oxidation and reduction reactions.