Importance

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Abstract

A muffler includes a pair of internal plates that are formed to define an array of channels and at least one chamber. The internal plates are connected in face-to-face relationship such that the channels define tubes that communicate with the chamber. At least one short section of conventional tube may be disposed between the plates to achieve a selected exhaust gas flow pattern. The connected internal plates is slid longitudinally into a tubular outer shell and end caps are secured to opposed ends to substantially enclose the muffler. The internal plates can be remanufactured prior to insertion into the tubular outer shell, and can be slid into tubular external shells of different lengths for significantly altering the acoustical tuning of the muffler.

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First Claim