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Top Speed of a GSX-R1000 ?
A muffler works by redirecting sound waves to baffle the sharpness of the combustion. When tuned correctly it can create a timed, pulsed back pressure that can actually increase the engines performance. Mufflers are also often packed with asbestos or fibreglass. This "absorbs" the higher tones by not letting them redirect such as carpet absorbs treble from your stereo. An exhaust actually has to be restrictive at some point to achieve this. And therefore not necessarily loud if designed well.
Is it a myth that running straight pipes will burn up valves?
It redirects the exhaust through a series of channels, thus dissipating sound throught the reflection of the waves and decreasing air flow.
Moped to Street bike..?
It gives you a deteailed explanation about how mufflers work
Why did my indicator lights die on my 1975 Suzuki ts250?
The principle of the baffles (channels that air is directed through) works by creating harmonic resonance that is 180 degrees out of synch with the pulsed air (exhaust) coming out. This tends dampen the noise, by mechanically creating what amounts to an equal and opposite sound wave.
Anyone rides a motorbike without knowing ohw to ride a bike?
by refracting sound wave,s through a series of chamber,s...thereby deadening the noise level..some flow restriction,s are unavoidable...the better the flow usually the louder the muffler will be.
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