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  • January 20, 2022

What Makes Up My Cars Exhaust System?

Your exhaust system is comprised of a variety of components that work together to direct harmful gases away from the vehicle, in the safest way possible.

Exhaust Manifold

The exhaust manifold from connects to the cylinder head and takes each cylinder’s exhaust, collecting it into one pipe. The size of your car’s exhaust manifold will depend on the number of cylinders your engine has.

Oxygen Sensor

All modern vehicles have at least two oxygen sensors (O2 sensors). Just as the name says, it senses how much oxygen is in your exhaust and sends that information to your car’s computer. 

From there, the computer can add or subtract fuel to achieve maximum fuel economy. The other job it does is it makes sure that your catalytic converter is doing its job and cleaning the air going through your exhaust system.

Catalytic Converter

This vital part of your exhaust system converts harmful carbon monoxide and hydrocarbons into water vapor and carbon dioxide. Some catalytic converters also reduce harmful nitrogen oxides.


The exhaust system hangers, which can also be referred to as exhaust supports, are the amounts that are used to secure and support the exhaust pipes to the underside of the vehicle. 

For your exhaust system’s overall health, even a single broken hanger can be dangerous. When one hanger breaks, there’s increased pressure on the others.

If your exhaust system has a broken hanger, it needs to be replaced immediately by your local professional repair shop.