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  1. #1

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    Riva FF Exhaust Drone

    Just joined the forum and this is my first post, hoping you guys can help.

    I've got the Riva FF Exhaust fitted to my FX-SHO. At idle or when riding hard it sounds good, but at lower speed / revs or when towing the drone (resonance) is deafening and annoying.

    I love the sound of a mean exhaust, but hate the drone.

    Can anyone explain what causes the drone?

    Any idea's on how to get rid of this?

    Would a rear exhaust outlet help?

    Thanks in advance.


  2. #2

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    Welcome Flyer,

    I have the same and it drives me deaf! I wear earplugs for some relief (also protection against wind noise).

    If it's unbearable and your not into racing, I would throw the old plastic one back in. It wouldn't make THAT much difference. Sorry.

    A thru hull would be louder still (but impressive).

    Thats just my thoughts

  3. #3

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    Thanks Gunna,

    I don't mind it being louder, just want to get rid if the drone. Hopefully they are not mutually exclusive!

    Cheers..

  4. #4
    08SHOC's Avatar
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    Would the through hull ....allthough be louder have less drone being that the exhaust is not resonating around the hull tunnel ????.

    Is there anyone who has tried both ...
    Last edited by 08SHOC; 01-03-2010 at 08:21 AM.

  5. #5
    Site Admin Green Hulk's Avatar
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    Quote Originally Posted by Flyer67 View Post
    Just joined the forum and this is my first post, hoping you guys can help.

    I've got the Riva FF Exhaust fitted to my FX-SHO. At idle or when riding hard it sounds good, but at lower speed / revs or when towing the drone (resonance) is deafening and annoying.

    I love the sound of a mean exhaust, but hate the drone.

    Can anyone explain what causes the drone?

    Any idea's on how to get rid of this?

    Would a rear exhaust outlet help?

    Thanks in advance.
    Welcome to the forum!

    I noticed the same drone when i ran the Riva free flow exhaust on my FZR. When i switched to the Riva rear exhaust the drone was gone.

    The drone probably comes from sound bouncing around in the pump tunnel area as it exits the stock exhaust location.

  6. #6
    Site Admin Green Hulk's Avatar
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    Quote Originally Posted by 08SHOC View Post
    Would the trough hull ....allthough be louder have less drone being that the exhaust is not resonating around the hull tunnel ????.

    Is there anyone who has tried both ...
    I don't find the thru hull louder at all. It sounds 10 x better than the free flow exhaust.

  7. #7

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    Quote Originally Posted by Green Hulk View Post
    I don't find the thru hull louder at all. It sounds 10 x better than the free flow exhaust.
    Interesting, thanks Mr Hulk.

    If there is a slight improvement of performance over the Free Flow and we loose that horrible drone, I would love to try it on "Big Pig". It's loud now.

    However it would have to be a custom job for the SHO as the thru hull is only available for the FZR/S. Yes???

  8. #8
    Site Admin Green Hulk's Avatar
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    Gunna, i noticed no increase in performance with the thru hull vs the free flow but the difference in sound makes it worth it. It looks bad ass too with that huge exhaust tip.

  9. #9
    Moderator RX951's Avatar
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    welcome to the forum flyer

  10. #10
    RUSH.'s Avatar
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    Quote Originally Posted by Green Hulk View Post
    I don't find the thru hull louder at all. It sounds 10 x better than the free flow exhaust.

    +1 the drone will completely go away with the thru hull and sounds better from the outside.

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