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fmf exhaust

  1. upgrading 2002 warrior but need help???

    Yamaha YFM350 Raptor/Warrior ('87-Present)
    looking to add a fmf powercore 4 exhaust and eventually something along the lines of a pro design air filter, but one wont break the bank. what size jets, carb kit or what ever do i need to add. my 2002 warrior already has pretty poor throttle response almost a dead spot. so looking for...