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Thread: yz426 Thunder alley head pipe

  1. 11-05-2006, 05:59 PM #1
    ss440ex
    ss440ex is offline LMS Racing
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    yz426 Thunder alley head pipe

    For anyone doing a exhaust system on their Hybrid.
    Or an up grade.
    Try Thunder alley`s yz head pipe.
    A big inprovement over the OEM.
    Lots of low end and noticiable mid range.

    Affordable and great looks!
    LMS Racing....
    Metal fab & welding

    Thanks to JH-Racing
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  2. 11-06-2006, 04:23 PM #2
    800screws
    800screws is offline Registered User
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    got a link?
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  3. 11-06-2006, 08:26 PM #3
    ss440ex
    ss440ex is offline LMS Racing
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    www.thunder-alley.net
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    Metal fab & welding

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  4. 11-07-2006, 07:29 AM #4
    Guest
    yz aftermarket headers dont do much. For the yz usually you get a smaller diamiter or a larger diamiter header. Larger= more top end and you loose bottom or small header any you gain bottom but loose top. Changing the muffler only adds 2hp. The yz motors come stock with good flowing systems.
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