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Thread: XB Exhaust Model Changes According to Year and Region

  1. #1
    Member adamtroymac's Avatar
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    XB Exhaust Model Changes According to Year and Region

    Hi Guys and Gals,

    I have a 2008 XB12R Firebolt here in Canada.

    Can anyone tell me the differences in exhaust XB models throughout the years? Why is there always a differentiation between 2004-2007 and 2008 - 2009 mufflers? I think there's a difference between European and North American models too? I know there is an added O2 sensor on the front header on some later models but this shouldn't change the muffler.

    What are the changes?

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    Senior Member Cooter's Avatar
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    All XB mufflers are interchangeable. (Caveat: There were some larger inlet pipe diameters in Europe).

    The XB 9 series has a smaller headpipe diameter compared to the 12.

    2010 added a bung in the front header for an O2 sensor. The header is the same otherwise.

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    Quote Originally Posted by Cooter View Post
    All XB mufflers are interchangeable. (Caveat: There were some larger inlet pipe diameters in Europe).

    The XB 9 series has a smaller headpipe diameter compared to the 12.

    2010 added a bung in the front header for an O2 sensor. The header is the same otherwise.
    Err.......kind of. Actually there are two different XB race exhausts. The 03 race can interferes with the 04+ pulley so the 04 and up exhaust exits were changed so that there wasn't pulley interference.

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    Senior Member Cooter's Avatar
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    I don't think he's asking about race exhaust. But that is good info to keep handy!

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    Member adamtroymac's Avatar
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    Thanks guys, so... lets review,

    XB9R collectors are smaller. All years all regions? ...and European 08 and up XB12R collectors are larger (2.5" I think)? ...and 03 Buell race exhaust interferes with 04 and up pulleys, correct?

    Everything else should be the same, for example an 04 XB12 muffler from anywhere should fit all North American model year XB12's? (ie. same 2" diameter collector with same angle).

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    Red face

    Quote Originally Posted by Cooter View Post
    I don't think he's asking about race exhaust. But that is good info to keep handy!

    I was just being a *%@!

  7. #7
    Senior Member Cooter's Avatar
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    But are they interchangeable??


    HAHAHAHAHAHA!!



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