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K & N filter HELP

698 Views 2 Replies 3 Participants Last post by  r6-ravon-slc
I just replaced my stock air filter with a K& N filter and it killed my gas millage the bike just seem to be laggin... So my Question to you all is has it happen to any one else ... and does it have to do with the A/F ratio.... do I need a PC III... Im about to just go out an get a stock filter... OH YEA i also have a GP 1 Jardine slip on does that make a diff.... Any feed back would be appreciated...
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i didnt fill the difrence really its just good because it can be reused
the dealer ship told me if i change the filter i would need a pcIII
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