Headers?
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Thread: Headers?

  1. #1

    Default Headers?

    Does anyone know the OD of the stock head pipes? I’m not home to measure mine unfortunately. I’m thinking about buying a voodoo exhaust for the M109R and making it work if the headers are a good bit larger OD. Thank you.

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  3. #2
    Active Member
    Join Date
    Jul 2017
    Location
    Peterborough UK
    Posts
    38

    Default Stock head pipe size

    Stock head pipe size is 44.22mm ID (1.741" ID) with mounting flange... 61.37mm OD (2.416" OD)
    Pipe size after header and down to CAT is 41.23mm OD (1.627" OD)
    Where pipes join into one before the CAT is 75.58mm OD

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