Having a good exhaust system and muffler can help you lower your engine temperature and tweak your power levels, and purchasing a new performance exhaust system is one of the easiest and least expensive ways to soup up your ride. The muffler specifically exists to reduce overall engine noise and lessen emissions, so you’re sure to pass your state’s emissions certification testing. The material in your muffler is incredibly durable - but not infallible – generally created from fiberglass, steel wool, or aluminum.
While muffling the noise from the engine, the muffler can also significantly impact the vehicle’s performance. The overall design is composed of a backbox with cylinders and chambers that bounce around the sound, very similar to the way a finely-tuned instrument would do.
Here are a few things to consider when installing/buying a muffler:
Compatibility: Specific mufflers are needed for individual vehicles, so be sure you’re getting one that is compatible with your car’s technology.
High performance: High performance mufflers are composed of simple steel pipes with perforations in them, so hardly any backpressure is created. While the sound is unique, the “cherry bomb” as it was nicknamed is generally only used on vintage cars and hot rods.
Spiral mufflers: Spiral baffle mufflers are for everyday use for most vehicles.
Split, delay, merge mufflers: Split, delay, merge mufflers generate practically no backpressure and allow for an exhaust sound that is adjustable based on your needs.
Flowmaster mufflers: Flowmaster mufflers are more restrictive than standard mufflers
Vector mufflers: Vector mufflers make use of a variety of concentric cones; these are generally used on diesel trucks that are on the large side.
Aero turbine mufflers: Aero turbine mufflers are more sophisticated, and create negative backpressure by generating a partial vacuum at precise intervals of time.
Corsa performance mufflers: Corsa performance mufflers greatly enhance efficiency and eliminate noise through resonating and straight-through technology.
Be sure you have the correct muffler not only for what you want to accomplish, but also that will fit your vehicle.
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This article originally appeared on YourMechanic.com as How to Buy a Good Quality Muffler and was authored by Valerie Johnston.