Quote:
Originally Posted by Sensei
The airbox has a "plate" of sorts that opens after a certain rpm. If you pull a vacuum line and plug it the plate will stay wide open all the time.
Its one of those free mods on the 04-07 1000RR's that takes about 15 seconds to do.
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thats cool, what kind of "performance gain" are we talking about??? Has anyone ever dynoed it before and after the flapper mod? Just curious, and intriged!