S9 Type Plastic Muffler pedestrians to enjoy a quieter urban environment. Plastic mufflers have excellent corrosion resistance, which allows them to remain in good condition in harsh environments. Traditional metal mufflers are susceptible to corrosion by chemicals in the exhaust system, causing surface rust and damage, which in turn affects their performance and lifespan. The special plastic material used in the plastic muffler has good corrosion resistance and can effectively resist the erosion of chemical substances in the exhaust system, extending its service life and reducing maintenance costs. https://www.nbmspc.com/product/plastic-muffler/