Reusable filter dynamically increases air flow and velocityDyno-tested and flow-bench designed, kit will add substantial increase to horsepower and torqueInnovative design enhances and accentuates your ''V'' Twin engineComplete with breather kit, mounting hardware and micron-fabric raincoat for wet-weather ridingEasy-to-follow instructions included for a do-it-yourself installSet-back, thin-line design does not interfere with rider's legMaximizes overall performance and fuel efficiencyMade in the USA