What Does A Dual Exhaust System Do?

An exhaust system is one of the most valuable parts of the car engine, because it is responsible for the control of directing harmful exhaust fumes away from the driver and passengers. It does all of this while helping the engine’s performance, improving fuel consumption, and reducing noise. 

The exhaust system includes exhaust pipes (including a tailpipe at the end of the exhaust system), a cylinder head, exhaust manifold, a turbocharger, catalytic converter, and a muffler, but the layout of the system may vary depending on a car’s make and model. Through a combustion process, the motor chamber removes gases from the engine and funnels them underneath the car to then exit from the tailpipe. One of the main differences of an exhaust system that drivers find from car to car is a single versus dual exhaust system. And if you have a dual exhaust system for your vehicle (or want a vehicle that does have it), you may be wondering how exactly the dual system works. 

What is a Dual Exhaust System?

A dual exhaust system, which is typically on sporty cars or even added to a car so it appears more sporty, is distinguishable by two tailpipes on the rear bumper instead of only one tailpipe. At the end of a dual exhaust system, fumes travel out two pipes and two mufflers, which reduce the noises from a car’s engine. 

Since an exhaust system controls and facilitates how fumes flow away from the engine, a dual exhaust system is beneficial because it removes the burnt gases from the engine and directs them out the tailpipes faster, which is better since it allows new air to enter the engine cylinders more quickly, which improves the combustion process. It also improves the performance of the exhaust itself because there is more airflow with two pipes versus all of those fumes having to try to flow in one pipe. So, there is less stress and pressure within the exhaust system if it is a dual system. 

Two mufflers also play a part in reducing the amount of stress within the engine, because a muffler, in order to reduce noise, restricts exhaust flow and creates pressure. This can slow down your engine. But with two mufflers and two channels of flow for fumes, the exhaust system operates more efficiently which improves the engine’s performance. 

Dual Exhaust vs. Single Exhaust

Don’t get us wrong, a single exhaust isn’t the end of the world or a detriment to your car. There is the possibility to upgrade a single exhaust system with larger diameter pipes, so the engine doesn’t work as hard and you don’t need to invest too heavily in changing the entire exhaust system. And this is probably the biggest asset to a single exhaust system: affordability. The single exhaust system, because it requires less work to assemble, is a less expensive option. This along with a lighter weight in the single exhaust versus a dual exhaust are the two strongest reasons to not choose a dual system. 

In every other field, the clear answer is that a dual system is better. It increases performance, exhaust flow, relieves stress from within the engine and exhaust, and gives a more attractive look to your vehicle. 

Contact For A Quote Today

When choosing or upgrading a car, it’s best to spare no detail, including your exhaust system. For a car that will look better and perform better (and last longer because of it), it’s wise to go with a dual exhaust system. 

If you want to learn more or even get a quote for a repair, addition, or alteration to your exhaust system, then don’t hesitate to contact us today at Performance Muffler. Founded in 2007, Performance Muffler has been the top shop for custom exhaust work in the Phoenix area. 

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