Exhaust sound attenuation and control system

An exhaust sound attenuation and control system, comprising:

• an outer housing having an interior, an inlet pipe extending through the outer housing and into the interior of the outer housing, and an outlet pipe extending through the outer housing and into the interior of the outer housing;
• a first exhaust sound attenuation element disposed within the interior of the outer housing, the first exhaust sound attenuation element functioning primarily as a muffler and including:
• a central elongated pipe with a first end and a second end, the first end receiving exhaust gasses from the inlet pipe;
• and
• a first element housing surrounding the central elongated pipe and including a vertical front baffle plate, a vertical central baffle plate, and a vertical rear baffle plate;
• a second exhaust sound attenuation element disposed within the interior of the outer housing, the second exhaust sound attenuation element functioning as both a muffler and a resonator and including:
• a second element housing having a top wall, a left sidewall, a right sidewall, an open inlet end receiving exhaust gasses from the lower port of the first exhaust sound attenuation element, an open outlet end through which exhaust gasses exit the second exhaust sound attenuation element, and a bottom wall;
• and
• a plurality of multi-walled baffle elements within the second element housing;
• and
• a third exhaust sound attenuation element disposed within the interior of the outer housing, the third exhaust sound attenuation element functioning as both a muffler and a resonator and including:
• a left front baffle plate having a front edge and a back edge;
• a left rear baffle plate having a front edge and a back edge;
• a plurality of left intermediate baffle plates having a front edge and a back edge and extending between the left front baffle plate and the left rear baffle plate;
• a right front baffle plate having a front edge and a back edge;
• a right rear baffle plate having a front edge and a back edge;
• a plurality of right intermediate baffle plates having a front edge and a back edge and extending between the right front baffle plate and the right rear baffle plate;
• and
• a plurality of curved baffle plates extending from one of the edges of the plurality of left and right intermediate baffle plates;
• and wherein:
• the central elongated pipe extends through the vertical front baffle plate and the vertical central baffle plate;
• and the vertical rear baffle plate seals the second end of the central elongated pipe;
• and
• the edges of the left and right intermediate baffle plates are spaced apart from one another, thereby forming openings between adjacent left and right intermediate baffle plates.