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The present invention provides an exhaust system for use on a motorcycle having an internal combustion engine with at least one exhaust port, the exhaust system including a first tubular member having a first end removeably coupled to the exhaust port of the internal combustion engine, and a second

The present invention provides an exhaust system for use on a motorcycle having an internal combustion engine with at least one exhaust port, the exhaust system including a first tubular member having a first end removeably coupled to the exhaust port of the internal combustion engine, and a second end, opposite the first end, forming a first connector. Where the first tubular member also includes a catalytic element positioned within the first tubular member between the first end and the second end, and where the first tubular member is gas-tight such that all exhaust gas entering the first end must pass through the catalytic element before exiting the second end. The exhaust system also includes a second member removeably coupled to the first connector of the first member, the second member having one or more baffles positioned therein.

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1. An exhaust system for use on a motorcycle having an internal combustion engine with at least one exhaust port, the exhaust system comprising: a first exhaust section including a header and a catalyst casing, the first exhaust section having a first end removeably coupled to the exhaust port of th

1. An exhaust system for use on a motorcycle having an internal combustion engine with at least one exhaust port, the exhaust system comprising: a first exhaust section including a header and a catalyst casing, the first exhaust section having a first end removeably coupled to the exhaust port of the internal combustion engine and a second end, opposite the first end, forming a first connector, wherein the first exhaust section also includes a catalytic element positioned within the catalyst casing;a second exhaust section removeably coupled to the first connector of the first exhaust section, the second exhaust section having one or more baffles positioned therein;wherein the header and the catalyst casing are either formed from a continuous piece of material or the header is welded to the catalyst casing; anda locking ring securing the second exhaust section to the first exhaust section, wherein the locking ring includes a plurality of radially inwardly extending locking protrusions,wherein the second end of the first exhaust section includes a locking channel, wherein the second exhaust section defines a plurality of slots, and wherein each locking protrusion extends through a corresponding slot in the second exhaust section and is positioned within the locking channel of the first exhaust section when the first exhaust section is coupled to the second exhaust section. 2. The exhaust system of claim 1, wherein the locking ring at least partially secures the exhaust system to a motorcycle frame. 3. The exhaust system of claim 1, wherein the second end of the first exhaust section includes a first sealing surface and a second sealing surface spaced from the first sealing surface, and wherein both the first sealing surface and the second sealing surface contact the second exhaust section when the second exhaust section is coupled to the first exhaust section. 4. The exhaust system of claim 3, wherein the first sealing surface and the second sealing surface are substantially parallel each other. 5. The exhaust system of claim 1, wherein the second exhaust section includes a distal end, and wherein the plurality of slots are proximate the distal end. 6. An exhaust system for use on a motorcycle having an internal combustion engine with at least one exhaust port, the exhaust system comprising: a first exhaust section including a header and a catalyst casing, the first exhaust section having a first end removeably coupled to the exhaust port of the internal combustion engine and a second end, opposite the first end, forming a first connector, wherein the first exhaust section also includes a catalytic element positioned within the catalyst casing; anda second exhaust section removeably coupled to the first connector of the first exhaust section, the second exhaust section having one or more baffles positioned therein,wherein the header and the catalyst casing are either formed from a continuous piece of material or the header is welded to the catalyst casing,wherein the second exhaust section includes a distal end, and the second exhaust section defines a plurality of slots proximate the distal end, wherein each slot is t-shaped. 7. The exhaust system of claim 6, wherein the t-shaped slot includes a first leg extending circumferentially around the second exhaust section and a second leg extending substantially axially from the first leg, and wherein the second leg is open to the second end. 8. A baffle casing configured to be releaseably coupled with a locking ring to a catalyst casing of an exhaust system of a motorcycle, the baffle casing comprising: a body having one or more baffles contained therein, the body also having a first end at least partially defining an outlet aperture, and a second end opposite the first end, the second end including a substantially cylindrical outer wall configured to receive an end of the catalyst casing, the second end of the body including a plurality of apertures spaced circumferentially about the substantially cylindrical outer wall, wherein the apertures are configured to receive locking protrusions of a locking ring such that the locking protrusions engage a locking channel of the catalyst casing. 9. The baffle casing of claim 8, wherein each aperture includes a slot extending substantially circumferentially about the body of the baffle casing. 10. The baffle casing of claim 8, wherein each aperture includes a slot having a first leg extending substantially circumferentially about the substantially cylindrical outer wall of the baffle casing and a second leg extending axially from the first leg toward the second end, and wherein the second leg is open to the second end. 11. The baffle casing of claim 8, wherein each aperture includes a slot extending axially, and wherein each slot defines a width between 0.100 to 0.150 inches. 12. A multi-piece muffler housing for use on a motorcycle exhaust system, the multi-piece muffler housing comprising: a first casing including a first substantially cylindrical body having a first end and at least one of a baffle or a catalytic element positioned therein, wherein the first substantially cylindrical body defines a plurality of t-shaped slots positioned proximate the first end;a second casing including a second substantially cylindrical body having a second end and the other of a baffle or a catalytic element positioned therein, and wherein the second end includes a first sealing surface, a second sealing surface, and a locking channel positioned between the first and second sealing surfaces, and wherein the first end of the first casing is configured to be removeably coupled to the second end of the second casing; anda locking ring configured to secure the second casing to the first casing. 13. The muffler housing of claim 12, wherein the locking ring includes a plurality of radially inwardly extending locking protrusions. 14. The muffler housing of claim 13, wherein each locking protrusion is configured to extend through a corresponding t-shaped slot of the first casing and be received within the locking channel of the second casing. 15. The muffler housing of claim 12, wherein the first end of the first casing is deflectable radially inwardly. 16. The muffler housing of claim 12, wherein at least one leg of the t-shaped slots is open to the first end. 17. The muffler housing of claim 12, wherein the first sealing surface extends axially from the second end, the locking channel extends axially from the first sealing surface at a diameter less than that of the first sealing surface, and wherein the second sealing surface extends axially from the locking channel at a diameter greater than the diameter of the locking channel. 18. A method of replacing a baffle casing, the method comprising: introducing a first end of a first casing axially onto a second end of a second casing, wherein the first casing defines a slot proximate the first end and includes one or more baffles therein, and wherein the second casing includes a locking channel and contains a catalytic element therein;providing a locking ring having a radially inwardly extending locking protrusion;aligning the locking protrusion with the slot of the first casing and the locking channel of the second casing; andcoupling the first casing to the second casing with the locking ring such that each locking protrusion extends radially through the slot of the first casing and is positioned within the locking channel of the second casing. 19. The method of claim 18, wherein coupling the first casing to the second casing includes deflecting the first end of the first casing radially inwardly.