K&N Street Metal Air Intake Systems for Harley Davidson motorcycles replace the restrictive stock OE air cleaner with an oversized K&N High-Flow Air Filter and a high-volume cast aluminum housing. If you are looking for an aggressive appearance but want a significant increase in airflow, resulting in more power, this high-flow air intake system is exactly what your Harley needs. Installation is so simple, it can usually be done in 90 minutes or less. The K&N air filter is washable, reusable, pre-oiled and ready for installation. This intake system features an updated modern look. Internal breathers provide a sleek, clean appearance. This air intake has a classic styling with a savage appeal. These K&N air intakes are street legal in most states. They are not legal for use in California and other states adopting California emission standards.. 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 that provides outstanding performance and protection. Integrated internal velocity stack. Built-in breathers replace external OE breathers. Easy to install, usually in 90 minutes or less. Oval-shaped matte black housing. Silver details and sanded fins further enhance the streamlined look.


Harley Davidson FLHR Road King 2008-2016
Harley Davidson FLHRC Road King Classic 2008-2013
Harley Davidson FLHT Electra Glide Standard 2008-2009
Harley Davidson FLHTC Electra Glide Classic 2008-2013
Harley Davidson FLHTCU Electra Glide Ultra Classic 2008-2013
Harley Davidson FLHTCUTG Tri Glide Ultra Classic 2013
Harley Davidson FLHTCUTG Tri Glide Ultra Classic 2009-2011
Harley Davidson FLHTK Electra Glide Ultra Limited 2011-2014
Harley Davidson FLHTK Ultra Limited 2015-2016
Harley Davidson FLHTKL Ultra Limited Low 2015-2016
Harley Davidson FLHX Street Glide 2008-2016
Harley Davidson FLHXS Street Glide Special 2014-2016
Harley Davidson FLHXXX Street Glide Trike 2010-2011
Harley Davidson FLRT Freewheeler 2015-2016
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 2016-2017
Harley Davidson FLSTFB Fat Boy Lo 2016
Harley Davidson FLSTFBS Fat Boy S 2016-2017
Harley Davidson FLSTN Softail Deluxe 2016-2017
Harley Davidson FLTR Road Glide 2008-2009
Harley Davidson FLTRU Road Glide Ultra 2011-2013
Harley Davidson FLTRX Road Glide 2015-2016
Harley Davidson FLTRX Road Glide Custom 2010-2013
Harley Davidson FLTRXS Road Glide Special 2015-2016
Harley Davidson FXSB Breakout 2016-2017

Warning: Cancer and Reproductive Harm – www.P65Warnings.ca.gov

Manufacturer's Part Number	RK-3952
CARB Approved	Yes