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  1. #1
    Ramps's Avatar
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    Question Exhaust on 2015 spark 2up 90HP

    Can I install my own high flow exhaust and eliminate the stock?


  2. #2
    Lightning1's Avatar
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    That is what I did, made my own out of aluminum pipe and eliminated the stock plastic box. Sounds good but is not stupid loud

  3. #3

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    Yep I bought everything I needed from siliconeintakes.com for less than $100. Sounds great and like lightning1 said it isn't stupid loud.

  4. #4
    EH Team Water Pig's Avatar
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    This what I did. Use a 2 ˝” wet exhaust elbow, a 2 ˝” aluminium pipe (15.5”) and use the through hull flange 274-001-391 rather than cutting up the stock resonator. Sounds a bit louder and throatier but no real performance gains.
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  6. #5

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    Is 274-001-391 a sea doo part #? I searched it and cant find anything.

    Quote Originally Posted by Water Pig View Post
    This what I did. Use a 2 ˝” wet exhaust elbow, a 2 ˝” aluminium pipe (15.5”) and use the through hull flange 274-001-391 rather than cutting up the stock resonator. Sounds a bit louder and throatier but no real performance gains.

  7. #6
    EH Team Water Pig's Avatar
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    Quote Originally Posted by nuttyn01 View Post
    Is 274-001-391 a sea doo part #? I searched it and cant find anything.

    Quote Originally Posted by Water Pig View Post
    This what I did. Use a 2 ˝” wet exhaust elbow, a 2 ˝” aluminium pipe (15.5”) and use the through hull flange 274-001-391 rather than cutting up the stock resonator. Sounds a bit louder and throatier but no real performance gains.
    Yes, it's a Sea-Doo part number. It's from a 2006 GTI STD

  8. #7
    Ramps's Avatar
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    I see the skiers are still here to help each other out, thanks for the replies. Now I need to update my Sig to include a V_Tech E85 tune, solas impeller 12/17, intake, pump seal kit,R&D high flow exhaust and the impeller tool. I even went overnight shipping, just because....thanks again...
    Last edited by Ramps; 06-15-2015 at 11:40 AM. Reason: Grammar

  9. #8
    Lightning1's Avatar
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    I noticed that the stock exit from my 09 px fit the opening as well. Same thread, same 90 degree bend, pry the same part number, but reguardless, a cheaper altermitive than getting a through hull fitting.

  10. #9
    stuckmoto's Avatar
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    Quote Originally Posted by Lightning1 View Post
    I noticed that the stock exit from my 09 px fit the opening as well. Same thread, same 90 degree bend, pry the same part number, but reguardless, a cheaper altermitive than getting a through hull fitting.
    Great find! Wish my '10 TX had the same. Oh well I'll pick that one up.

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