K&N RK-3951 High-Flow Air Intake System for Harley Davidson

The K&N RK-3951 Intake System is designed specifically for Harley Davidson motorcycles, enhancing performance by replacing the restrictive stock air cleaner with a high-flow air filter and a cast aluminum housing. This system not only boosts horsepower but also improves throttle response and engine sound, giving your bike an aggressive look and feel. The washable and reusable K&N air filter ensures outstanding performance and protection, while the integrated internal velocity stack optimizes airflow for maximum power. • Guaranteed to increase horsepower • Designed to improve throttle response and engine sound • Cast aluminum high-volume, performance air intake housing • Washable and reusable K&N high-flow cotton air filter • Integrated internal velocity stack