k&n high flow lid for a 450er

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Oct 18, 2008 | 04:06 PM
  #1  
has anyone that has put the k&n high flow lid on there bike used the jets that came with the lid? if soo did the bike run better with those jets?
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Oct 18, 2008 | 07:38 PM
  #2  
k&n high flow lid for a 450er
If you increase ariflow without richening the jetting, you will end up runing lean and toast your engine! What jetting you need also depends on what other mods you have as well.
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