The function of exhaust systems is to move the gases that are emitted by vehicles and other waste products out of the vehicle and allow the car to run at a low level of sound. It also reduces the amount of pollution and smoke that is emitted into the environment. 

The VZ Commodore UTE exhaust system has to be maintained in a way that ensures efficient and clean functioning of the vehicle. It is a crucial component of the engine in the car and should be maintained in good condition to avoid the engine from being affected. These are the main elements of an exhaust system:

Exhaust manifold: It's the primary element in the exhaust system. It is made up of aluminum, stainless steel, or cast-iron device which is connected to the engine's combustion chambers and is used to collect exhaust gases generated by the burning process.

Catalytic converters: The purpose of a catalytic converter is to ensure that the ignition is complete for gases that are not properly ignited within the combustion chamber. The converter stops harmful elements such as carbon monoxide and nitrogen oxides from being released into the air. It is crucial that the converter is operating in good condition. 

Some states have a requirement for an annual inspection of the converter to make sure that vehicles aren't emitting harmful chemicals into the air.

Exhaust pipes: These pipes transport exhaust through the entire system. The connection to the manifold is made begins and finishes at the tailpipe, where the exhaust is discharged.