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The K&N RK-3955 Street Metal Air Intake Adds Style and Power to Harley® FL Models
The K&N RK-3955 Street Metal Air Intake Adds Style and Power to Harley® FL Models
10 nov 2017
The RK-3955 intake adds a classic ram-air look to the Harley V-twin
More than any other motorcycle manufacturer, Harley-Davidson® has always made the air intake a prominent design and style feature on the iconic V-twin engine. K&N knows this, and we have designed a line of intakes that accentuates the look of that Harley powerplant.
The K&N RK-3955 Street Metal Intake harkens back to the aggressive styling of muscle car shaker ram-air intakes. However, it’s not just a look; the RK-3955 intake is guaranteed to boost the performance of the Harley 107CI Milwaukee 8 FL model line. Let’s take a look at the style and performance of the RK-3955.
Style
The powdercoated aluminum body of the RK-3955 is open in the front, exposing the familiar and respected K&N filter element. Flowing back from that ram-air leading edge are raised, natural aluminum ridges that add an aggressive, three-dimensional element to the most visible surface of the intake.
K&N's designers outdid themselves with the aggressive look of the RK-3955 intake
The iconic K&N logo graces the top surface of the intake housing. Out back, three, large-diameter holes add even more style and airflow to the intake. Simply put, the RK-3955 adds a new level of cool to that massive V-twin engine.
Performance
'All show and no go' is simply not what K&N does. The RK-3955 is as long on performance as it is on style. The intake is built around a highly refined internal velocity stack that provides and focuses a large amount of air. There are also internal breathers that eliminate the stock plumbing.
That same housing that provides those great looks is also designed to provide massive airflow to the engine. That increase in airflow is where the power is. When installed on an otherwise stock 2017 107CI Harley-Davidson Road Glide, K&N’s testing showed an estimated power increase of almost 3.5 horsepower at 4700 RPM.
Convenience
An engineered velocity stack is housed in that great looking intake body
The RK-3955 intake installs easily in about 90 minutes. Once installed, the durable K&N high-flow filter element is fully washable and reusable. When periodic cleaning is needed, the process of washing and re-oiling the pleated, cotton gauze filter media is made easy with a recharge kit like the K&N 99-5000.
Take a look at the application list below and consult K&N online search tool for all of your filter needs.
2017 HARLEY DAVIDSON FLTRXS ROAD GLIDE SPECIAL 107 CI - All Models 2017 HARLEY DAVIDSON FLTRX ROAD GLIDE 107 CI - All Models 2017 HARLEY DAVIDSON FLTRU ROAD GLIDE ULTRA 107 CI - All Models 2017 HARLEY DAVIDSON FLRT FREEWHEELER 107 CI - All Models 2017 HARLEY DAVIDSON FLHXS STREET GLIDE SPECIAL 107 CI - All Models 2017 HARLEY DAVIDSON FLHX STREET GLIDE 107 CI - All Models 2017 HARLEY DAVIDSON FLHTKL ULTRA LIMITED LOW 107 CI - All Models 2017 HARLEY DAVIDSON FLHTK ULTRA LIMITED 107 CI - All Models 2017 HARLEY DAVIDSON FLHTCUTG TRI GLIDE ULTRA 107 CI - All Models 2017 HARLEY DAVIDSON FLHR ROAD KING 107 CI - All Models
