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Two stroke engines, by their very nature, require some of the 'plumbing' you note in your question. Specifically the expansion chamber. Unlike 4-stroke engines, two-stroke engines require the expansion chamber and stinger (reduced diameter over distance) at the end of pipe. The energy in the exhaust wave expands and wave front slows in the expansion ...


You may be able to get close to what you want by installing a stainless steel exhaust (as opposed to the standard mild steel). It will give you a more raspy sound. In addition, deleting the center resonator/muffler and adding a freeflowing sports rear box with a large tip (diameter should be larger than the diameter of the pipe coming from the cat) would ...

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