K&N RK-3947XB Intake System

K&N's Street Metal Series High-Flow Air Intake Systems provide a good looking appearance, offer increased airflow and deliver more horsepower & torque to your Harley-Davidson motorcycle.

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K&N's Street Metal Series High-Flow Air Intake Systems provide a good looking appearance, offer increased airflow and deliver more horsepower & torque to your Harley-Davidson motorcycle. These intake systems increase power by eliminating the stock OE air cleaner which is replaced by a complete high-flow K&N air intake system. This air intake system is constructed with an extra tall K&N air filter providing more air flow and longer service intervals than standard RK-series air intake filters. The extra tall air filter design is intended to be used on larger or custom engine builds that would benefit from higher levels of air flow. Installation is simple with a sturdy, custom aluminum backing plate that mounts directly to the throttle body via an aluminum integrated, internal-run breather system. A durable mounting gasket is also included to help absorb vibration. The K&N high-flow air filter is washable, reusable, pre-oiled and ready for installation. Simple designed custom covers give this air intake good looks while powering down the highway or at your local show.

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Application Summary:

Year	Make/Model
2008-2016	Harley Davidson FLHR Road King
2008-2013	Harley Davidson FLHRC Road King Classic
2008	Harley Davidson FLHRSE4 Screamin Eagle Road King
2008-2009	Harley Davidson FLHT Electra Glide Standard
2008-2013	Harley Davidson FLHTC Electra Glide Classic
2008-2015	Harley Davidson FLHTCU Electra Glide Ultra Classic
2015	Harley Davidson FLHTCUL Electra Glide Ultra Classic Low
2010	Harley Davidson FLHTCUSE5 CVO Ultra Classic Electra Glide
2014-2015	Harley Davidson FLHTCUTG Tri Glide Ultra
2009-2013	Harley Davidson FLHTCUTG Tri Glide Ultra Classic
2010-2014	Harley Davidson FLHTK Electra Glide Ultra Limited
2015-2016	Harley Davidson FLHTK Ultra Limited
2015-2016	Harley Davidson FLHTKL Ultra Limited Low
2008-2016	Harley Davidson FLHX Street Glide
2014-2016	Harley Davidson FLHXS Street Glide Special
2010-2011	Harley Davidson FLHXXX Street Glide Trike
2015-2016	Harley Davidson FLRT Freewheeler
2016-2017	Harley Davidson FLS Softail Slim
2016-2017	Harley Davidson FLSS Softail Slim S
2016-2017	Harley Davidson FLSTC Heritage Softail Classic
2016-2017	Harley Davidson FLSTF Fat Boy
2016	Harley Davidson FLSTFB Fat Boy Lo
2016-2017	Harley Davidson FLSTFBS Fat Boy S
2016-2017	Harley Davidson FLSTN Softail Deluxe
2008-2009	Harley Davidson FLTR Road Glide
2011-2013	Harley Davidson FLTRU Road Glide Ultra
2015	Harley Davidson FLTRX Road Glide
2010-2013	Harley Davidson FLTRX Road Glide Custom
2015-2016	Harley Davidson FLTRXS Road Glide Special
2017	Harley Davidson FXDWG Dyna Wide Glide
2016-2017	Harley Davidson FXSB Breakout

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