Motorcycle USA Posted July 6, 2007 Report Share Posted July 6, 2007 If for some reason you haven't heard someone bitching and moaning about how loud these modern 4-strokes are then it's probably because the thunderous output has made you deaf. Ignition Products is trying to make it easier for riders to manage their noise output with a simple creation.More... Quote Link to comment Share on other sites More sharing options...
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