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  1. #1
    African-American
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    DIY: Custom Exhaust Pipe Outlet

    I saw this on dvd956 ski, and he sent me a DIY, so i decided to add it to the how-to section with some extra pictures.

    Originally Posted by dvd956
    ok... I did mine my self , I went to a place where they sell aluminum pieces (tubes , sheets and all kind of aluminum ) and I bough a 4" diameter , 2mm tick and 20" long tube , and a 12x12 inches 2mm tick sheet of aluminum , the hole was made by the guy you spoke to, he made it with a drill and a hole saw like this

    with the proper angle so the exhaust outlet is looking down...
    once you have the hole made get the tube and insert it leaving the end outside the hull and get a marker (sharpie) and mark exact where you have to cut so the tube fit the curve of the hull.
    Then you mave to mold the metal sheet to the hull with a rubber hammer so it rest in the hull surface similarly.
    once you have the sheet molded and the tube marked, cut the tube where you make the mark and see if it rest on the sheet molded .
    Then you have to mart trough the inside of the tube where is that you have to cut the sheet to leave the exhaust hole and then leave a lip of 1 1/2 " in the outside so you can use chinch to attach it to the hull ...
    once you have made all the abobe, take the pieces to weld and then clean it with a grinder so the surface is clean enough... get a drill and make 4 holes like it is on my pics and put the exhaust, it it rest similarly in the hull, get silicone and put it around the lip, insert the exhaust and put the clinchs... YOU ARE DONE !!!!
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  2. #2
    mrbtd's Avatar
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    What did you do to cover the existing hole ?

    What do you see as the advantage of doing this ?

  3. #3
    RUNWME's Avatar
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    Just a round plate and drill and tap with to plug existing hole... the exhaust is just for different sound and looks, but i dont think you will see a performance advantage. Dual exhausts like this would be great

  4. #4
    L Carlson's Avatar
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    This how I did one of mine. I like the look of yours also might try that out on the next project!
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  5. #5
    Moderator OsideBill's Avatar
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    The advantage I see to doing a mod like this is a clean pump tunnel. I have seen several variations of this and am considering doing something like this.

  6. #6
    2000 GPRXP 4tec shooter98xpl's Avatar
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    Buddy of mine has a RX 951 seadoo that he has a rear exhaust done up like that and that thing sounds like a monster. I can't imagine what it sounds like on these gprs. Start it up and take a video of it so we can hear it.
    SHOOTER

  7. #7
    Moderator beerdart's Avatar
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    Out the front on a Triple Piper!!!
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  8. #8
    L Carlson's Avatar
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    nice beerdart that must be way loud?

  9. #9
    L Carlson's Avatar
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    oside don't ever worry about getting dirty with this type of mode they should have built like this from the factory mine just cost me way to much!

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