What is the purpose of my exhaust system's resonator?
This component is basically an additional pipe or chamber inside the muffler that's designed to decreases exhaust noise. It contains a specific volume of air to be able to cancel out some of the sound frequencies coming from the engine. In some car makes and models, this part can also refer to an additional muffler. As an add-on component, it is usually found on luxury vehicles that is designed to provide an extra quiet and smooth driving experience.
I noticed that my old car doesn't have an add-on resonator. Do I really need to install one? If I install this part, what benefits do I get?
In some vehicle makes, this exhaust pipe is an add-on component. Your car's exhaust system will still function without this pipe since a basic muffler already has a resonating chamber, but it's better to equip your ride with this component because of the several benefits it offers. This part effectively reduces exhaust and engine noise and improves overall engine performance and driving experience because you'll enjoy more horsepower without using up too much fuel. It will also help you pass a fuel emissions test because it helps control chassis rattling, a natural occurrence within the exhaust assembly that might lead to contaminated emissions.
Where is the resonator located? What does it look like?
If it's a built-in component, it's simply a tube of cylindrical steel placed inside the muffler. But if it's an add-on part, it looks just like a muffler and is placed along the exhaust pipe beside the main muffler.
What's the difference between a muffler and an add-on resonator?
These parts may look alike and have a similar goal, which is to reduce noise coming from the exhaust system, but each component works differently. A muffler is designed to reduce the amount of engine sound, while a resonator (add-on and built-in types) changes the volume of the sound by cancelling out sound waves or by reflecting the sound waves back to the engine. These parts work together to provide you with a smoother and quieter drive.
How exactly does a resonating chamber inside a muffler work?
As sound waves coming from the engine enter the muffler, they go through the resonating chamber. These sound waves are then reflected back by this chamber. But because the dimensions of this part are specifically engineered to reduce noise, the waves reflected back cancel the new waves that are coming in. The result is less engine noise.
What are Helmholz resonating tubes?
Helmholz resonating tubes are basically exhaust pipes that are more complicated in design. Because of their design, they can provide a more precise control over the sound waves that go through them. Helmholz noise-reducing systems are used in some types of vehicle engines and motorcycles. Examples include the Buell series motorcycles and the Chrysler V10 engine used in Ram pickups and Dodge Vipers. This system is also found on some European cars such as BMWs and other luxury vehicles that are designed to provide a quiet drive.