It may be easy to take for granted the rumble of our engines upon stepping into our cars and turning the key. The truth is, cars are a feat of engineering and are quite complex. In total, there are 9 general automotive systems all working together in perfect harmony to propel us from point A to point B. Such systems as the engine system and braking system usually steal most of the attention, but today we are going to talk a little bit about the often unsung, hard-working exhaust system. Here are some exhaust basics and insights from your South Ogden auto repair experts at Tunex South Ogden. 

Healthier Car, Cleaner Air

Your car’s exhaust system is designed to properly handle the toxic emissions your car produces by carrying out two important functions. The first is to direct harmful substances away from the driver and passengers. The second is to reduce the air pollution your car releases into the environment. This is achieved with help from a few fundamental car components.

Exhaust Manifold

The exhaust manifold is the first section of the exhaust system and collects the exhaust gases from multiple cylinders into one pipe. 

Oxygen Sensor

In order to run properly and output the healthiest possible exhaust, the engine needs the correct proportion of both fuel and oxygen. The oxygen sensors in a vehicle ensure that the engine’s timing, combustion intervals, and other essential exhaust-creating functions are all being carried out as they should. 


The resonator is an important component that sits between the catalytic converter and the muffler. The purpose of the resonator is to help control the sounds coming from your vehicle’s exhaust system. Without a resonator, the unbridled sounds of a car engine hard at work can be quite loud and obnoxious. 

Catalytic Converter

This environmentally-friendly component is an exhaust emission control device that reduces toxic gasses and pollutants in exhaust gas by catalyzing a redox reaction. This chemical reaction effectively changes compounds in the exhaust to less harmful substances that are then released into the air. 


The muffler works with the resonator to reduce the noise emitted by the exhaust of an internal combustion engine. If you ever hear a car drive by that is particularly loud, the owner has likely made modifications to or completely removed the muffler. 

Exhaust and Tailpipes

The exhaust and tailpipes are the necessary internal plumbing if you will that channel the exhaust fumes to where they need to be. Of course, most all of the exhaust will end up leaving out the back through the tailpipe. 

Signs Your Exhaust System Is Struggling

There are a number of warning signs that accompany a faulty exhaust system. Some of the most common include the following: 

  • Excessive Engine Noise
  • Decreased Acceleration and Power
  • Decreased Fuel Efficiency
  • Strange Smells Coming From the Engine Bay
  • Hanging Pipes
  • Extra Dirty Exhaust
  • Gas Smell

If you are experiencing any of these problems, it is highly recommended that you take your car to a professional for a proper diagnostic. 


A healthy exhaust system not only helps your vehicle achieve peak performance but also mitigates the number of harmful substances in the air. Here in Utah, car emissions contribute to unclean, polluted air that can impact our respective environments. For this reason, residents’ vehicles are required to undergo an emissions inspection every two years. At South Ogden Tunex, we make sure that the exhaust system is working properly so you not only pass emissions but spare the environment undue stress. If you have any questions or concerns about your vehicle’s exhaust system, bring it on to us. We would be happy to help you out.