BARON Smooth Big Air Kit - Black - C50 BA-2080-00BSlim 1 1 2" hi flow reusable filter and specially designed back plate dynamically increases air flow and velocity Complete with breather kit, mounting hardware and micron fabric raincoat for wet weather riding Flow bench and dyno designed for substantially increased horsepower and torque Innovative styling enhances and accentuates your "V" Twin engine Easy to follow instructions included for a do it yourself install Set back, thin line design does not