Mufflers must be built tough to handle high pressure exhaust gasses, absorb impact from road debris, and resist corrosion. The straight-through design also tends to be more compact than other muffler styles, making it a popular choice among street rodders and custom car builders.ģ. Ideal for racing, this setup allows exhaust gas to flow through the pipe with very little restriction but provides less sound reduction than chambered mufflers. These mufflers feature a straight, perforated pipe wrapped in sound absorbing material such as fiberglass packing. Straight-through mufflers, or glasspacks, are designed to allow maximum flow-and horsepower. Ideal for street applications, some turbo-style mufflers also incorporate a sound deadening material, which is packed around the tubes for increased muffling. Although this design is more restrictive than other styles, the S-design allows the gasses to travel through more tubing for better noise reduction. Turbo mufflerstypically use a set of perforated tubes, which often guide the exhaust gasses through the muffler in an S-shaped pattern. Some manufacturers also use sound-deadening baffles or inserts within the chambers to further reduce or alter exhaust sound. The exact exhaust tone and noise reduction of chambered mufflers depends on the size and number of the chambers. As the sound waves bounce into one another, they cancel each other out, causing a reduction in exhaust noise.
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They use a series of inner chambers that are configured at specific lengths to reflect sound waves against each other. Ideal for street machines and muscle cars, chambered mufflers are designed to reduce exhaust noise while providing a throaty performance sound for the street. Each style has its own set of benefits and drawbacks. The three main muffler styles are chambered, turbo, and straight-through. The right length will ensure easy installation and proper clamping the right casing size and shape will allow it to fit within the confines of your vehicle’s undercarriage.Ģ. How much room is available for the muffler(s)? You’ll need to make sure the outside dimensions of your muffler allow for proper clearance under the vehicle.What is the exhaust pipe diameter? You’ll need to match your inlets, and in some cases outlets, to match your existing exhaust diameter.If you’re merging a dual exhaust into one muffler, you’ll need a dual-inlet muffler. For example, a single exhaust will require a single inlet on the muffler. Is it a single or dual system? This will help you determine the number of inlets you need on your muffler.
No matter what style of muffler you choose, you’ll need to ask yourself a few questions about your existing exhaust system: Find the Right Fit: Inlets, Diameters & More To help you choose the right muffler for your sound and performance tastes, we’ve created this three-step guide:ġ. Muffler manufacturers configure these components in different ways to produce different exhaust tones. Depending on the style, a muffler uses some combination of baffles, chambers, perforated tubes, and/or sound deadening material to achieve this goal. Ideally, an aftermarket muffler will provide a good performance exhaust tone without creating too much power-stealing backpressure. While the job description is simple, the way in which a muffler performs its main task is more varied and complicated. These high pressure pulses create very powerful sound waves, and the muffler is tasked with reducing this powerful sound to a tolerable level. Once internal combustion takes place, the engine expels exhaust gasses in the form of high pressure pulses.
The job description of a muffler is simple: noise reduction. That’s why it’s important for hot rodders to choose the right muffler for their vehicle. The ideal muffler will deliver just the right growl, roar, or rumble to back up your vehicle’s performance and appearance. Depending on the muffler, the sound of high performance can be anything from a low, throaty growl to an ear-splitting roar-and everything in between.
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