K&N Street Metal Intake System for Harley Davidson - Color (Red) - Style (Round) - Size (9-11 Flux) - RK-3937

K&N's Street Metal Series High-Flow Air Intake Systems provide attractive styling, offer increased airflow and deliver more horsepower & torque to your Harley-Davidson motorcycle. These air intake systems eliminate the stock OE air cleaner and replace it with a complete high-flow air intake system to increase power. The sturdy, custom aluminum backing plate mounts directly to the throttle body via an aluminum integrated, internal-run breather system. The air intake system comes with a K&N Air Filter for high air flow and long service intervals. The K&N air filter is washable, reusable, pre-oiled and ready for installation. To help absorb vibration, a durable mounting gasket is also included. A scalloped teardrop-shaped custom cover gives this air intake the type of edge you'd only expect to see on full-custom choppers.

This Part Fits:

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

Please note image may vary from product. Also, some items are special order. If delivery time is a concern, please contact us prior to purchase. 

When it comes to automotive filters, there is no greater known name that K&N Engineering!

K&N Engineering is an American manufacturer that specializes in designing and producing high-performance air filtration systems for automotive, motorcycle, and industrial applications. Founded in 1969 by Ken Johnson and Norm McDonald, K&N initially gained recognition for its oil bath air filters, but it became widely known for its innovative cotton gauze air filters that deliver superior performance compared to traditional paper filters.

K&N is best known for its air filters, which are made from multiple layers of oiled cotton gauze, sandwiched between aluminum mesh. This design allows for higher airflow compared to conventional filters, enhancing engine performance, throttle response, and efficiency. These filters are also reusable and washable, offering long-term cost savings and reducing environmental waste compared to disposable paper filters.

The company offers a variety of products, including air intake kits, cold air intake systems, and performance filters for cars, trucks, motorcycles, and even powersport vehicles. K&N’s cold air intakes, in particular, are popular upgrades for performance enthusiasts, as they provide cooler air to the engine, improving power output and efficiency.

In addition to air filtration products, K&N also manufactures oil filters and performance accessories such as cleaning kits for maintaining their filters. Their products are designed to meet the needs of both casual car enthusiasts and professional racers. The company has a strong presence in the motorsport community and is often seen as a trusted brand for improving engine performance and efficiency.

​Fidanza Performance, founded in 1997, is a leading US manufacturer of high-quality lightweight aluminum flywheels, precision adjustable cam gears, and high-performance clutches. With nearly 20 years in the automotive performance market, Fidanza is renowned for its expertise and respected globally, offering products for a wide range of vehicles, from European sports cars to modern muscle cars and imports. The company originated in racing, with founder Lou Fidanza's success in the SCCA leading to the creation of specialty parts like aluminum flywheels. Fidanza has since expanded its product line to include cam gears and performance clutches, gaining a loyal customer base and worldwide recognition. In 2023 Fidanza opened the SpeedParts4Less Marketplace which sells other manufacturers quality high performance parts!