It is a collection of components that form one system in order to control the gasses that are released by the engine due to the fuel burning process from the engine. It also reduces the sound that is created by the process so it basically protects the environment not only from the pollution caused by the burning gasses but also the noise pollution.
The system not only releases the gasses but also converts the unburned hydrocarbons into water vapors and carbon dioxide which is a lot less harmful for the environment in comparison with the original gasses.
- Image Courtesy: hdabob.com
The muffler is the part of the exhaust system that deals with controlling the noise that is created by the combustion of fuels inside the engine. It is also known as the silencer. An absence of one functioning properly can cause a headache to many including the person driving the vehicle.
Mufflers are designed as per the given engine and it is made sure that they adhere to the given requirements of that particular engine. It does, however, reduce the efficiency of the engine as it makes a back pressure zone.
- Image Courtesy: cantonwearmaster.com