For car enthusiasts in their 50s or older, they are familiar with car mufflers, but their noise control function is becoming increasingly limited. So, a simple question and whether replacing the muffler has any benefits, before the muffler appears, it won't be surprising. Although replacing sports mufflers is popular, it is now rare to adjust the noise.
Due to the lifting of regulations, customized cars have been largely legalized, but I think there is a chance to see a decrease in the proportion of car exhaust silencers in the near future. The main reason is that in the past decade, volume control for muffler manufacturers has become increasingly strict. Sports car enthusiasts have significant opinions on this issue.
The function of a muffler is to gradually reduce exhaust energy, lower pressure and temperature. This can lower the temperature of the muffler's exhaust, and the emitted sound will reduce the volume, adjusting the sound quality. The three-way catalyst is located upstream of the muffler (diesel engine oxidation catalyst), and NOx emissions (nitrogen oxides), CO (carbon monoxide), HC (hydrocarbons), such as harmful components N2 (nitrogen), carbon dioxide (carbon dioxide), and H2O (water vapor) are discharged into H2O. The presence of catalytic converters is crucial as it complies with strict emission regulations.
