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XJ650 Exhaust Manifold Collector

Discussion in 'XJ Technical Chat' started by Jadds, Nov 5, 2026 at 3:47 PM.

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  1. Jadds

    Jadds Member

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    Easy question I hope.
    Can an XJ650 Turbo exhaust manifold collector (The 4 into 1) be installed on a non-turbo XJ650?
    Additionally alongside installation, will it have any impact on engine performance?

    Thanks so much in advance.

    JD
     
    Jadds, Nov 5, 2026 at 3:47 PM
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  2. Simmy

    Simmy Well-Known Member

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    Yes it fits, even bolts to the bottom of the engine with the same rubber isolator.
    There is one glitch, you will need to remove the left centre-stand pedestal, not sure if that's important to you.
    The early 650 Maxim would need the head pipes from a later bike as I believe they are different.
    You didn't say if you have a Maxim or Seca?
    I'm using this collector with a Maxim-X motor
     
    Simmy, Nov 5, 2026 at 6:41 PM
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  3. Jadds

    Jadds Member

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    Hey Simon, thanks mate. Its a seca. So it means a centre-stand delete and some frame cutting? Hmmm. Id have to think about that.
    Im just having trouble finding the correct 4 into 2 unit for the seca.
     
    Jadds, Nov 6, 2026 at 1:33 PM
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