• 37033

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The K&N RK-3942 High-Flow Air Intake System increases engine intake airflow and delivering more horsepower & torque to your Harley-Davidson® motorcycle. The intake system increases power by eliminating the stock OE air cleaner and replacing it with a complete High-Flow Air Intake System. The sturdy, custom aluminum backing plate mounts directly to the throttle body via an aluminum integrated, internal-run breather system. The intake system comes with a K&N Air Filter for high air flow and long service intervals. The K&N High-Flow Air Filter is washable, reusable, pre-oiled and ready for installation.

Designed for Harley-Davidson motorcycles
Increase horsepower and torque
Easy to install
Made in USA
Backed by K&N warranty For over 40 years K&N has been designing and manufacturing performance air filters for the motorcycle and ATV enthusiast interested in maximizing horsepower and acceleration. Our air filter is designed to achieve high, virtually unrestricted air flow while maintaining filtration levels critical to ensure long engine life. K&N Air Filters will NOT void Motorcycle Warranty and are environmentally friendly. K&N Reusable Air Filters reduce the volume of disposable air filters that end up in landfills!
Designed to provide increased Horsepower and Acceleration
Pleated cotton media provides a large filtration area offering low restriction and long service intervals
Multi-Layers of woven cotton gauze media offers excellent filtration
Fits directly into OEM Airbox with application specific Sealing Bead ensuring a precise fit
No fuel Management modifications are normally required to obtain increased performance
Washable & reusable, most are pre-oiled and ready to ride!

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