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How does a DB killer reduce the noise level of an exhaust system?
A DB (decibel) killer is a muffler or an insert that can be installed in the exhaust system of a motorcycle, scooter or ATV to reduce the noise level. It works by absorbing and dampening the sound waves produced by the exhaust gases as they exit the engine. Typically, a DB killer is made of a material that is designed to dampen sound waves, such as fiberglass, metal, or a combination of materials. The sound waves are reflected and absorbed by the material, reducing the volume of the exhaust noise. The shape and size of the DB killer also play...
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