BOS Slip on

Discussion in 'Mods, Upgrades, Accessories and Products' started by porcpen, Feb 10, 2014.

  1. porcpen

    porcpen New Member

    Joined:
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    Hi,
    Does anyone have a BOS slip on, and if so, did you need to retune your bike or not?
    Cheers
     
    #1 porcpen, Feb 10, 2014

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