Exhaust And Mapping

Discussion in 'WR125X WR125R Discussions' started by Callum B, Jun 20, 2017.

  1. Yo guys,

    Basically decided on getting a black widow exhaust, anyone had experience with them? And what are they like?

    Another thing is will I need to change anything like I've heard about power commanders and stuff to change the fuel to air ratios and stuff. Or will it be fine just changing the exhaust.


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