Abstract: An exhaust muffler includes a housing having a rectangularly shaped hollow interior without fiberglass or other packing. An inlet tube and a first outlet tube extend through one side wall of the housing, and a second outlet tube extends through an opposite side wall. The inlet tube extends to an inner end disposed at a central region of the interior in a position facing away from a forward end wall of the housing toward an opposite rearward end wall, while a baffle assembly within the interior includes perforated partitions that define two Helmholtz chambers, as well as a first passageway from the inner end of the inlet tube to the first outlet tube and a second passageway from the inner end of the inlet tube to the second outlet tube. The baffle assembly includes first and second plates disposed within the first and second passageways to split the flow of exhaust gases.

Abstract: An exhaust component for an internal combustion engine includes a housing having an interior. Left and right inlet tubes are provided on an inlet end wall of the housing for conveying exhaust gases to the interior, and at least one outlet tube is provided on an opposite outlet end wall of the housing for conveying the exhaust gases from the interior. A first panel extending between top and bottom walls of the housing in a position intermediate the inlet and outlet end walls defines an outlet opening in fluid communication with the outlet tube. Second and third panels extend convergingly toward the outlet opening from left and right side walls of the housing in order to direct the exhaust gases toward the outlet opening. One embodiment includes both left and right outlet tubes that extend from the outlet end wall to the outlet opening covergingly so that both the left and right outlet tubes are in fluid communication with the outlet opening.

Abstract: An exhaust muffler includes a housing having a rectangularly shaped interior without fiberglass or other packing, an inlet tube on a first end portion of the housing for conveying exhaust gases to the interior, an outlet tube on an opposite second end portion of the housing for conveying the exhaust gases from the interior, and a baffle assembly within the interior for defining multiple different paths for exhaust gases to follow and two Helmholtz chambers for the exhaust gases to encounter as the exhaust gases flow through the interior of the housing from the inlet tube to the outlet tube. A central chamber flow path is provided that inhibits reverse flow.