$299.99 Sale:$264.99
Model #RK-3951S
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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.
Features:
WARNING: Cancer and Reproductive Harm
Make Vehicle | Model | Submodel | Year | Engine | Notes |
---|---|---|---|---|---|
2008-2016 Harley Davidson FLHR Road King |
FLHR Road King | 2008-2016 | |||
2008 Harley Davidson FLHRSE4 Screamin Eagle Road King |
FLHRSE4 Screamin Eagle Road King | 2008 | |||
2008-2009 Harley Davidson FLHT Electra Glide Standard |
FLHT Electra Glide Standard | 2008-2009 | |||
2008-2013 Harley Davidson FLHTCU Electra Glide Ultra |
FLHTCU Electra Glide Ultra | 2008-2013 | |||
2009-2013 Harley Davidson FLHTCUTG Tri Glide Ultra |
FLHTCUTG Tri Glide Ultra | 2009-2013 | |||
2011-2014 Harley Davidson FLHTK Electra Glide Ultra Limited |
FLHTK Electra Glide Ultra Limited | 2011-2014 | |||
2015-2016 Harley Davidson FLHTK Ultra Limited |
FLHTK Ultra Limited | 2015-2016 | |||
2015-2016 Harley Davidson FLHTKL Ultra Limited Low |
FLHTKL Ultra Limited Low | 2015-2016 | |||
2008-2016 Harley Davidson FLHX Street Glide |
FLHX Street Glide | 2008-2016 | |||
2014-2016 Harley Davidson FLHXS Street Glide Special |
FLHXS Street Glide Special | 2014-2016 | |||
2010-2011 Harley Davidson FLHXXX Street Glide Trike |
FLHXXX Street Glide Trike | 2010-2011 | |||
2015-2016 Harley Davidson FLRT Freewheeler |
FLRT Freewheeler | 2015-2016 | |||
2016-2017 Harley Davidson FLS Softail Slim |
FLS Softail Slim | 2016-2017 | |||
2016-2017 Harley Davidson FLSS Softail Slim S |
FLSS Softail Slim S | 2016-2017 | |||
2016-2017 Harley Davidson FLSTF Fat Boy |
FLSTF Fat Boy | 2016-2017 | |||
2016 Harley Davidson FLSTFB Fat Boy Lo |
FLSTFB Fat Boy Lo | 2016 | |||
2016-2017 Harley Davidson FLSTFBS Fat Boy Lo S |
FLSTFBS Fat Boy Lo S | 2016-2017 | |||
2016-2017 Harley Davidson FLSTN Softail Deluxe |
FLSTN Softail Deluxe | 2016-2017 | |||
2008-2011 Harley Davidson FLTR Road Glide |
FLTR Road Glide | 2008-2011 | |||
2011-2013 Harley Davidson FLTRU Road Glide Ultra |
FLTRU Road Glide Ultra | 2011-2013 | |||
2015-2016 Harley Davidson FLTRX Road Glide |
FLTRX Road Glide | 2015-2016 | |||
2010-2013 Harley Davidson FLTRX Road Glide Custom |
FLTRX Road Glide Custom | 2010-2013 | |||
2015-2016 Harley Davidson FLTRXS Road Glide Special |
FLTRXS Road Glide Special | 2015-2016 | |||
2016-2017 Harley Davidson FXSB Breakout |
FXSB Breakout | 2016-2017 |
K&N, formally known as K&N Engineering, Inc., is the world’s leading manufacturer of washable performance air filters and cold air intake systems. K&N manufactures over 12,000 parts for a wide range of makes and models of motorcycles, cars, SUV, trucks, industrial applications, and more. K&N was founded in 1969 and is headquartered in Riverside, California in a complex of 10 buildings compromising approximately 400,000 square feet. K&N also operates facilities in China, England, and the Netherlands.
In the early 1960s, two motorcycle racers, Ken Johnson and Norm McDonald (K&N) developed a revolutionary idea for an air filter—one that could perform under the demands of dusty, dirty off-road environments. After experimenting with different types of filter media, they discovered that an oiled cotton design allowed the filter to capture contaminants efficiently, and also be washed and reused. It was right then and there that the original K&N High-Flow Air Filter was born. Fifty years later, K&N is still dominating the industry with leading filtration technology and innovative products that offer extraordinary protection for virtually every application out there.
All K&N products undergo rigorous testing to make sure they adhere to and exceed demanding quality standards. These tests include power, torque, and airflow tests to confirm that the intake products are maximizing power boost while retaining engine safety. The company stands behind its product 100 percent with some of the most extensive warranties in the business – a Million Mile Limited warranty. K&N’s performance air intake systems are designed to improve airflow to the engine by replacing the restrictive factory system with a single aerodynamic tube and highly efficient filter media. The systems are available in two materials. The first is Polyethylene, which is used to produce 57 and 63 series intake systems. The second one is aluminum, which can be found on the 69 and 77 series intake systems.
The benefits of adding a K&N intake system to your car are plenty. Firstly, it will increase your vehicle’s horsepower and torque, while also improving fuel economy and the appearance of your engine bay. What’s more, it will deliver a satisfying, more aggressive exhaust note at higher RPMs. Each K&N intake includes an oversized filtering unit, which can go up to 100,000 miles between cleanings, unlike paper filters that can become clogged easily and cannot be washed or reused. In other words, with K&N products, you will never have to replace your air filter again.
Internal combustion engines all work as large air pumps. Air goes in, fuel is added, combustion occurs, and air goes out. This means there are two ways of increasing power: getting more air into the engine or making it easier for air to get out of the engine. Your air intake is responsible for filtering air before it enters your engine. Dirty air can damage the engine cylinder walls, so a high-quality filter is a must-have item. With a K&N system or filter, you increase airflow through the filter, which means more air is pulled into the engine. K&N does this without reducing filtration qualities, so your engine will live a long life.
Vivid Racing carries an extensive inventory of K&N products ranging from air filters, oil filters, air injection systems, fuel filters and pumps, sensors, carburetors, cold air intakes, and much, much more! If you cannot find a particular item above, please call us at (480) 966-3040 and we will help you find it. We are also here to answer any product questions, regarding usage, benefits, and fitment. Don’t delay! Improve your vehicle’s performance today with K&N Intakes.
K&N Oil Filters | K&N Replacement Filters | K&N 57 Series Intakes | K&N 69 Series Typhoon Intakes
K&N 77 Series Intakes