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low-volume insert

  1. Yoshimura R-77 low-volume insert?

    Ninja 300 Parts & Accessories
    I just wrote to Yoshimura about this question. I want to install a low-volume insert in the R-77 muffler since the engine isn't tuned for the open muffler. Not sure what is in the muffler now and what the extra part is that I was given. What do I have here? (See attachments.) I just know that...
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