The K&N Aircharger air intake systems replace the choked up stock air cleaner with one of the high-flow filter systems available on the market. K&N's efficient design allows your bike to notably have an increase with airflow, resulting in a notably increase of performance across the range. These Aircharger kits come with a washable, reusable K&N high-flow air filter which has been backed by their warranty. They wanted to make your life easy as possible so you can get this kit installed and ride with 90 minutes or less. Choose between their sleek black or polished finishes that will give your bike a custom look while unlocking performance. K&N AirCharger Air Intakes increase power by eliminating the restrictive stock OE air cleaner and replacing it with a K&N High-Flow Air Filter and mandrel bent aluminum intake tube Guaranteed to increase horsepower Designed to improve throttle response and engine sound Aluminum tube with high quality finish Washable and reusable lifetime air filter Lasts up to 100,000 miles before service is required (depending on driving conditions) Easy to install, usually in 90 minutes or less K&N Million Mile Limited Warranty These intakes come with a billet aluminum throttle-body mounting plate and mounting hardware K&N High-Flow Intake Systems give your Harley an aggressive appearance while providing a significant increase in airflow resulting in more power These K&N air intakes are street legal in most states. They are not legal for use in California and other states adopting California emission standards