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  1. #1

    R&D Manifold X-tender Help

    I have an R&D manifold X-tender with O2 bung. I am having some trouble mounting this to the X waterbox with the V-band clamp. It appears that the waterbox flange + X-tender are too wide for the Stock v-band calmp. Anyone have this problem? Help appreciated. Thanks.


  2. #2
    jetskibum1's Avatar
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    Rotation

    Quote Originally Posted by comish71 View Post
    I have an R&D manifold X-tender with O2 bung. I am having some trouble mounting this to the X waterbox with the V-band clamp. It appears that the waterbox flange + X-tender are too wide for the Stock v-band calmp. Anyone have this problem? Help appreciated. Thanks.

    Have you tried a little rotation of the box and flange??

  3. #3
    Yes I did. I actually have the waterbox out and tried flipping over the X-tender. It only goes on one way as there is a concave and convex part which fits in the exhaust manifold and waterbox.

  4. #4
    Steve STSPERFORMANCE's Avatar
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    You need the V band clamp that goes on a J pipe. I had the same problem. The flange on the extender is like the j pipe and is not as wide as the straight pipe exhaust.

    j pipe v band will fix your problem.

  5. #5
    Will have to double check that. I tried both clamps and none seem to fit. I actually put both clamps next to each other and they had on the same numbers stamped on them as well as looked exactly the same. I thought they were the same part, will look it up in the original parts finder.

  6. #6
    Part numbers are actually different, so will give it a try again with the other clamp. Will keep you posted. Thanks.

  7. #7
    Hydrotoys's Avatar
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    I ran into this.

    If using the new exhaust:
    You need the V-band clamp for the older J-pipe setup, on the manifold side, and the 08 V-band clamp for the X-pipe side.

    If you are using the J-pipe setup, you need two of the older V-band clamps.


  8. #8
    I have the one clamp here. If recall right they both have K-72, this one has B14, 50429-1.

    anyone got both sets of clamps within eyeshot to verify.
    thanks guys.

  9. #9

    v-band clamps

    So i got both clamps and the numbers on them are identical. I know that the one v-band clamp is from my 2007 rxt with j pipe. The other came with the x-water box, head pipe assembly, and v-band clamp. Unless the v-band clamp was not the original one for the x-waterbox I can't figure out why the X-tender would not fit. I tried both. Wonder if I possilbly have to machine down the larger flange on the x-tender pipe.

    Any ideas folks.

  10. #10
    AKA: Larry lafjax's Avatar
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    Quote Originally Posted by comish71 View Post
    So i got both clamps and the numbers on them are identical. I know that the one v-band clamp is from my 2007 rxt with j pipe. The other came with the x-water box, head pipe assembly, and v-band clamp. Unless the v-band clamp was not the original one for the x-waterbox I can't figure out why the X-tender would not fit. I tried both. Wonder if I possilbly have to machine down the larger flange on the x-tender pipe.

    Any ideas folks.
    I looked up and ordered the clamp from an 07 rxt which fit the manifold end.
    I bought by the clamp from an 08 RXTX by mistake. I already had one on the ski. You need one of each. They are different. 07 is narrower than the 08.

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