BARON BIG AIR KIT SMTH C-50 BA-2080-00Reusable filter dynamically increases air flow and velocity, Dyno tested and flow bench designed, kit will add substantial increase to horsepower and torque, Innovative design enhances and accentuates your "V" Twin engine, Complete with breather kit, mounting hardware and micron fabric raincoat for wet weather riding, Easy to follow instructions included for a do it yourself install, Set back, thin line design does not interfere with rider's leg,