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  1. #1
    wakeboardmuppet's Avatar
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    Jul 2008
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    Yamaha ho waterbox

    I've fitted a Riva Exhaust by-pass pipe to my 2004 FX HO Cruiser.

    It still sounds like a Vacuum cleaner, only slightly louder.

    I have been reading how to butcher the waterbox on an SHO. Has anyone done it on an older HO. Is there anything to avoid? Will it make it sound any better?


  2. #2
    When i did it on my sho it doesnt sound much louder than when I added the free flow...

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