K&N Cold Air Intake System: Filter with High Flow, Performance and Acceleration: Compatible 2001 2017 Harley Davidson: (see product descriptions for selected models), 57 1137S

GUARANTEED INCREASE IN POWER AND TORQUE K&N cold air intake systems provide a less restrictive path for airflow and increase the volume of cool, oxygen-rich air into your engine. DYNO TESTING YOU CAN TRUST K&N air intake horsepower/torque tests are performed on wheel-based dynamometers and the reports are included with every intake system. IMPROVED ENGINE SOUND - HEAR THE GROWL: K&N intake systems let your engine breathe and sound as it should. Your engine will growl at acceleration and return quietly once the speed is reached. BETTER TOWING The K&N air intake kit improves acceleration and uphill climb performance when towing by improving throttle response, overall performance and torque. Excellent for daily and highway rides. PREMIUM ENGINE PROTECTOR FROM A Trusted Brand:K&N air intake does not void the manufacturer's warranty and hassle-free lifetime limited warranty protects for the life of your vehicle. HIGH FLOW REUSABLE AIR FILTER 4 layers of pleated breathable cotton with K&N's red filter oil to absorb dirt and dust particles, allowing clean air to continue to flow into your engine, only needs to be cleaned every 100,000 miles under normal highway conditions. Easy to install: Includes detailed, step-by-step instructions and all necessary parts - the entire air intake system can usually be installed in less than 60 minutes with simple hand tools. MADE IN THE USA: Made in the USA for trusted quality and reliability and backed by US-based customer service.