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  1. #1
    Yuji's Avatar
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    Thru Hull Dimensions

    Just wondering if anyone knows what the Rotax Racing thru-hull piping inside diameter is? I measured my stock resonator and it was 2.25"...Just want to see if the aftermarket piping is larger for more flow.


  2. #2
    Site Admin Green Hulk's Avatar
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    No, it's the same size.

  3. #3
    Yuji's Avatar
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    Holy weed wackers batman that was a quick reply

    Thx Jerry

  4. #4
    EZ Dock of Long Island Shibby1485's Avatar
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    Ain't gonna find that kinda prompt tech. assistance ANYWHERE else

  5. #5
    Vern's Avatar
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    Is there a hull cutting template with the RR thru hull, or is there a copy of the template online here?

  6. #6
    Site Admin Green Hulk's Avatar
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    The RR comes with a template.

  7. #7
    Got Boost? psycho rxp's Avatar
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    Here's a pic of the install instructions..very easy
    Attached Thumbnails Attached Thumbnails Click image for larger version. 

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  8. #8
    Do you guys think that the Riva thru hull outlet location, which is lower than the RR unit, is quieter in the no wake zones?...PR...

  9. #9
    Site Admin Green Hulk's Avatar
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    No! They are both under water.

  10. #10
    Quote Originally Posted by Green Hulk
    No! They are both under water.
    just a thought ...PR...

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