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Thread: Muffler for 250sx

  1. #1
    Join Date
    Mar 2009
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    Earth
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    Muffler for 250sx

    Would Changing the muffler on my 250sx add a bit more power? I think its just the stock pipe on it right now.
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  2. #2
    jeopardy98's Avatar
    jeopardy98 is offline At The Back Of The Pack Arm chair racerAt the back of the pack
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    Jun 2008
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    Prince George, VA
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    I don't know but if you do please let me know what you want for your stock pipe, lol.

  3. #3
    Join Date
    Feb 2006
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    EC
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    No power increase at all with just a pipe, like any dirt machine. With a 350X carb & aftermarket pipe, yes. You have to use the main & pilot jets from the SX in the 350X carb(I think?), though. Tri-Z Nate & dirtcrasher are your best resourses after doing a search in Trikesylvania.

  4. #4
    Join Date
    Oct 2002
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    Even just a Cobra exhaust (which is loud as all hell) the 250SX does in fact wake up and the main jet can be opened up - with the air box lid OFF.

    One step further is the 350X carb and yes you may use the 250SX pilot, but the main well have to jump up a bit.

    Honestly, because the 250SX is limited in gearing, I think those changes are about as far as any S should go. The suspension also limits you and IMHO, a ton of extra power isn't needed.

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