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  1. #1

    Question No Riva FF Exhaust For '11 15f Models?

    This doesn't seem to be available for an '11: http://www.rivayamaha.com/pwc_pkgs/rk_rpm_15f_11.asp

    Although '08 and down it is: http://www.rivayamaha.com/pwc_pkgs/rk_rpm_15f_08.asp

    I did some digging around the board and noticed they switched the exhaust outlet side from left to right, so the older kit is definitely not going to work.

    Are there different internals now and this yields zero gain for an '11?

    Planning to do prop, ride plate, filter, and free flow exhaust at the same time... any other suggestions?

    Thanks!


  2. #2
    My name is Sean and I am addicted to STXs smokeysevin's Avatar
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    You only have one waterbox stock so you basically have the freeflow. That being said the exhaust tubing is smaller and I believe the waterbox is more restrictive and I know the exhaust outlet is smaller. You can swap the tubes and gut tye waterbox to get the same result of the freeflow.

    Sean

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