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Thread: Gibson Mufflers ...Performance Results

  1. #11
    CJ
    Also, condition changes have an impact as well. If you're using your baseline from a few weeks when the weather was different, cooler, than it was with the new mufflers/silencers, regardless of brand, and now it is warmer, you will see a difference in performance that is most likely due to a temperature increase which will result in the loss of some RPM.
    I think this is where I apply. I tested the boat un-muffed all winter, then I put the Bullets on my 525 for the summer. Warm weather should lower my RPM's, right?

  2. #12
    OutCole'd
    I think this is where I apply. I tested the boat un-muffed all winter, then I put the Bullets on my 525 for the summer. Warm weather should lower my RPM's, right?
    I dropped about 150-200 rpms from Winter to Summer.

  3. #13
    riverrunner
    I'm running the Gibson Bullets on my HP500. Saw very little loss in RPM and speed, but the thing passed at the Havasu Marina easy.

  4. #14
    Havasu_Dreamin
    I think this is where I apply. I tested the boat un-muffed all winter, then I put the Bullets on my 525 for the summer. Warm weather should lower my RPM's, right?
    Yes, the warmer weather will cause RPM loss.

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