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hi flow

  1. General MC Board
    i just bought a 08 m109r 3 weeks ago and it came with big shots and a fuelpak installled and tuned for stock air filters now i have k & N hi flows but was told by K & N that i should keep the programing for the stock filter (FP-1128 ) becouse the it may get more air but not enuff to be hi flow...
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