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  1. #1
    PWCToday Regular
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    Mission Viejo CA
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    Is the RD-Performance Air Filter a good choice for the SXR 800??

    Guys,

    i just rebuilt my 2011 SXR 800 and was wondering if the RD-Performance air filter is a good choice? It looks like it comes with full K&N type filter material all the way around it.

    I've ridden dirt bikes my whole life and in that world you have to be meticulous with air filter maintenance to keep dirt out of the engine.

    I know that watercraft don't operate in that world, but it still seems weird to me that that there's little to no barrier to dust and anything else from being sucked into the engine. We spend all this money on rebuilds and performance parts and just run it basically open.

    after the rebuild I put the stock airbox on and even left in the rubber trumpets, (I don't know if most people realize that the base plate for the stock cover has three "nickle" sized holes on each end which allows even more air to come in). I've read good things about the stock cover keeping water out of the carbs, but I do like that K&N type filter.

    So is the RD-Performance air filter pretty good??
    Is there any downside to it??
    Does it allow more water to enter the carbs?
    When it does get wet, does it make the engine run rich until it dries out?

    I mostly ride it for recreation and don't tend to submerge it all that much.

    What do you think??

  2. #2
    Top Dog
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    Re: Is the RD-Performance Air Filter a good choice for the SXR 800??

    technically the filters on skis are spark arresters to meet coast guard requirements.
    r&d filters are fine and when wet will not impede air flow.

  3. #3
    I dream skis MTRHEAD's Avatar
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    Re: Is the RD-Performance Air Filter a good choice for the SXR 800??

    Yes. I used the rd pro plenum on my SXR lites race ski after testing probably 5-7 different setups. Remember on water you want stainless mesh. Not paper or foam like dirt bikes

  4. #4
    PWCToday Regular
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    Re: Is the RD-Performance Air Filter a good choice for the SXR 800??

    I've never seen the RD-Performance air filter up close and assumed it has the paper filter behind the stainless steel mesh.

    Am I wrong or does it have the paper filter in there??

  5. #5
    Top Dog
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    Re: Is the RD-Performance Air Filter a good choice for the SXR 800??

    only metal mesh.

  6. #6
    PWCToday Regular
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    Re: Is the RD-Performance Air Filter a good choice for the SXR 800??

    Really??

    In the picture, it looks like it has the paper filter material behind the mesh.

    filter.JPG

    Now I'm confused,.....

  7. #7
    Top Dog
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    Re: Is the RD-Performance Air Filter a good choice for the SXR 800??

    yes really!!! pffffff!

  8. #8
    PWCToday Regular
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    Re: Is the RD-Performance Air Filter a good choice for the SXR 800??

    I believe you,....I just gotta see one of these things in real life.

  9. #9
    I dream skis MTRHEAD's Avatar
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    Re: Is the RD-Performance Air Filter a good choice for the SXR 800??

    They are stainless. KN tried paper and it was a joke in watercraft

  10. #10
    Top Dog
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    Re: Is the RD-Performance Air Filter a good choice for the SXR 800??

    actually k&n tried gauze between layers of stainless mesh just like their auto stuff but when wet became restrictive

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