K&N Street Metal performance air intake systems increase power by replacing the restrictive stock OE air cleaner with a K&N complete performance air intake system.
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're 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 a matte silver housing with polished fins. Internal breathers provide a sleek, clean appearance. This air intake has classic styling with a savage appeal.
- Guaranteed to increase horsepower
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 |
| 2008-2013 |
Harley-Davidson FLHTCU Electra Glide Ultra Classic |
| 2010 |
Harley-Davidson FLHTCUSE5 CVO Ultra Classic Electra Glide |
| 2009-2013 |
Harley-Davidson FLHTCUTG Tri Glide Ultra Classic |
| 2011-2014 |
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 |
| 2016-2017 |
Harley-Davidson FLSTFB Fat Boy Lo |
| 2016-2017 |
Harley-Davidson FLSTFBS Fat Boy S |
| 2016-2017 |
Harley-Davidson FLSTN Softail Deluxe |
| 2008-2010 |
Harley-Davidson FLTR Road Glide |
| 2011-2013 |
Harley-Davidson FLTRU Road Glide Ultra |
| 2015-2016 |
Harley-Davidson FLTRX Road Glide |
| 2010-2013 |
Harley-Davidson FLTRX Road Glide Custom |
| 2015-2016 |
Harley-Davidson FLTRXS Road Glide Special |
| 2016-2017 |
Harley-Davidson FXSB Breakout |
| Attributes |
| ASIN |
B071JVVKJF |
| Air Filter Color |
Red |
| Air Filter Height |
2.469 in (63 mm) |
| Air Filter Material |
Cotton Gauze |
| Air Filter Washable |
Yes |
| Alternate Part Number |
RK-3951S |
| CARB EO Number |
D-269-59 |
| California Proposition 65 |
WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov |
| California Restricted |
Not legal for sale or use in California |
| Color / Finish |
Red Filter, Silver Housing |
| Country of Origin (Primary) |
CN |
| Emission Code |
Legal US |
| Estimated Horsepower Gain |
6.04 HP @ 4907 RPM |
| GTIN |
00024844364616 |
| Harmonized Tariff Code (Schedule B) |
8421310000 |
| Hazardous Material Code |
N |
| Horse Power Increase |
6 HP |
| Life Cycle Status Code |
Available to Order |
| Mounting Hardware Included |
Yes |
| Overall Height |
3.25 in (83 mm) |
| Package Material |
Paperboard |
| Package Type |
Box |
| Product Box Height |
5 in (127 mm) |
| Product Box Length |
12 in (305 mm) |
| Product Box Width |
10 in (254 mm) |
| Product Style |
Motorcycle Intake System |
| RPM |
4907 |
| Replacement Filter |
E-3987 |
| SDR Required Flag |
N |
| Street Legal In All US States |
No, Not legal for sale or use in California on any pollution controlled motor vehicle. NOTE: Some specific models and years may be legal in CA. Check the CARB status on your parts at knfilters.com. |
| TUV Approved (Europe) |
No, No |
| Top Material |
Silver Powder Coated |
| Warranty |
No-Hassle Lifetime Limited |
| Warranty Time |
3 |
| Weight |
4.9 lb (2.2 kg) |
