K&N's Street Metal Series High-Flow Air Intake Systems offer increased airflow and deliver more horsepower & torque to your Harley-Davidson motorcycle.
The K&N RK-3947 High-Flow Air Intake System increases engine intake airflow and delivers more horsepower & torque to many Harley-Davidson FLT and FLH model motorcycles. The intake system increases power by eliminating the stock OE air cleaner and replacing it with a complete High-Flow Air Intake 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.
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 |
Additional Information:
