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4T Arrow/bosi Exhaust Jetting


klonheadd
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Hi all , I have finally invested in Bosi/arrow exhaust for my Beta 4t Evo 300 2012 and have question about jetting. Could I use it without changing any jets or settings on carburretor ? and to get best performance, what jets and settings would I need to change. Can anyone with experience chime in. Thanks!

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