Fuel combustion produces several gases like hydrocarbons or the unburned fuel, carbon dioxide, sulfur dioxide, carbon monoxide, nitrogen oxides, phosphorus lead and other metals that once reached the atmosphere could be very harmful or even fatal. And as a process of burning fuel, the engine through its combustion also creates noise. This is the reason why every Chevrolet vehicle is equipped with exhaust system. This exhaust system functions as silencer at the same time a system that cleans these exhaust gasses and converts it in to a lesser harmful and cleaner air. The exhaust system is basically a series of pipes and tubes located underneath the vehicle that is connected from the engine and ends at the tail pipe when it releases the air to the atmosphere.

The exhaust system starts from exhaust manifold which connects the whole system to the engine of the vehicle. Is made from cast or nodular iron which gathers the exhaust gases to manage and direct the flow in to one direction, which is to the tail pipe. The exhaust manifold is designed depending on the type of the engine employed in the vehicle and the number of cylinders the engine has and the design depends on how many cylinders are present.

After the exhaust is gathered from the fuel combustion, it is directed to the catalytic converter. The catalytic converter, as the name implies, converts the exhaust gasses into a lesser harmful gas. When this process is done, the air goes to the resonator. The resonator, also known as the mini muffler reduces the sound of the exhaust. It is either located at before or after the muffler which functions the same as the resonator. All modern injected cars have an oxygen sensor to measure how much oxygen is present in the exhaust. The sensor is commonly located in the exhaust manifold or close to it in the exhaust pipe. The last part of the system is the tail pipe which is also the only visible part of the system. The whole system constitutes a very vital part of the vehicle.