Exhaust Muffler

An exhaust muffler comprising:

• a hollow body defining an inlet opening and an outlet opening;
• an exhaust pipe fluidly coupling the inlet opening to the outlet opening, and disposed at least partially within the hollow body,
• wherein the exhaust pipe is adapted to allow a flow of exhaust gases therethrough,
• wherein the exhaust pipe defines a plurality of orifices on the exhaust pipe such that the exhaust gases flowing through the exhaust pipe can flow out of the exhaust pipe within the hollow body and/or flow back into the exhaust pipe from the hollow body through the plurality of orifices;
• a secondary pipe disposed within the hollow body, wherein the secondary pipe is filled with a sound absorbing material;
• and
• at least one baffle, wherein the baffle is engaged with the exhaust pipe and the secondary pipe to allow at least one of the exhaust pipe and the secondary pipe to pass therethrough.