Abstract: Embodiments of the present invention provide an exhaust enhancement device that allows a motorcyclist to achieve a desired engine sound while also achieving improved engine performance by reducing exhaust reversion. More particularly, embodiments of the present invention provide for an exhaust enhancement device having a cylindrical tubular body portion configured to be disposed within a motorcycle exhaust pipe so that exhaust gasses may flow therethrough. The exhaust enhancement device further includes a frustoconical screen extending from an end of the cylindrical tubular body portion. The frustoconical screen has an array of holes in its wall for allowing exhaust gasses to pass therethrough. The exhaust enhancement device may further include one or more washer-like members disposed therein and configured to alter the flow of exhaust gasses so that reversion is reduced.

Abstract: Sound and power are an important part of the motorcycling experience. From the early days people have been attempting to get it “right” and have tried numerous ways to achieve the best of both worlds. Generally one had to be sacrificed to some degree to get the other. Tuning the exhaust rather than tuning the carburetor or increasing cubic inches is a less expensive and more efficient way to get both the sound and midrange power that motorcyclists are looking for. With the exhaust enhancement device of the present invention, exhaust pipes can be tuned for sound and increased midrange power very simply and easily by installing them in the exit end of an aftermarket straight type pipe using various combinations to achieve a desired sound and not sacrifice power.