bigal Posted February 6, 2009 Report Share Posted February 6, 2009 hi there everybody could anyone out there tell me if its a good idea or a bad idea to remove the secondary butterfly valves on a zx10r 05 read many different articles on this but people seem to have conflicting ideas cheers everybody Link to comment Share on other sites More sharing options...
fran9r Posted February 6, 2009 Report Share Posted February 6, 2009 PB did this with their ZZR 1400, and got more low down power. Go do it! Link to comment Share on other sites More sharing options...
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