Thread: muffler/noise
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Old 09-17-2009, 01:51 PM
BarelyAWake's Avatar
BarelyAWake BarelyAWake is offline
Motorized Bicycle Elite Member
Join Date: Jul 2009
Location: Maine
Posts: 7,212
Default Re: muffler/noise

The really loud motorcycles are usually running straight pipe w/o any sort of baffle or muffler. Loud as ****, they can get away with that as their bikes are four strokes and only need a lil back pressure.

Our bikes use metal plates with holes in them inside the muffler as "baffles" to cut down noise, but not very well as you noticed lol Car mufflers use a combination of intricate passages and fiberglass batting and really long pipe length to get the almost silent effect, the honeycomb inside a catalytic converter is so restrictive it tends to do most of the silencing these days lol

Anyhoo, here's the link ya asked for, hope it's some help
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