Image Factory Yamaha has these nice rubber inserts/grommits they use when hey need more airflow through the airbox lid. Credit ML512 Use keyboard arrow keys to browse the gallery. Swipe to browse the gallery. Prev Next 27 of 60Autoplay Autoplay SlowMedFast Share to Facebook Facebook Facebook Share to Twitter Twitter Twitter ML512 5/19/2015 3:09am Share to Facebook Facebook Facebook Share to Twitter Twitter Twitter