K&N High Flow Air Charger Long Intake Kit For Harley These intakes are built for many different vehicles and represent a dramatic improvement over a K&N O/E replacement filter alone. K&N Air Intake Kits virtually eliminate air path restriction by replacing the air filter and the entire air path to the engine. Features: The aerodynamically engineered tube drives a massive amount of air into an engine, which translates into power. Kit includes breather assembly and all necessary mounting hardware Remapping of ECM may be required Optional Drycharger sock 402-713 sold separately