KNRK-3910-1 - K&N AIR INTAKE KIT FITS HARLEY DAVIDSON 99-2012 SOFTAIL & DYNA

RK-3910-1 K&N Intake System-Harley Davidson

K&N's RK Series was developed to get more horsepower from your Twin Cam Harley-Davidson®engine. Built around the legendary K&N High-Flow Air Filter,the this RK Series assembly includes an innovative powder coated billet aluminum back plate that eliminates external breathers and features a built-in,dyno-tuned velocity stack. The result is a significant airflow increase to the engine without sacrificing filtration. This RK Series assembly retains a factory appearance by utilizing the stock air cleaner cover. The RK-3910-1 comes with a larger air filter and longer spacers than the RK-3909-1.

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• Designed to increase horsepower&torque
• Dyno-tuned velocity stack
• Washable and reusable
• Excellent air filtration

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Estimated Horsepower Gain	10.76 HP @ 5206 RPM
Replacement Filter	E-3980
Air Filter Color	Red
Air Filter Material	Cotton Gauze
Warranty	1,000,000 Miles/10 Year
Product Style	Motorcycle Intake System
Size	9 Inch
Air Filter Shape	Oval
Air Filter Height	2.188 in (56 mm)
Air Filter Outlet Shape	Round
CARB EO Number	D-269-35/55
Street Legal In All US States	See Vehicle Applications
TUV Approved (Europe)	No
Inlet Diameter	2.25 in (57 mm)
Overall Height	2.188 in (56 mm)
Top Style	Metal
Top Material	Black Powder Coated
Clamps Included	No Clamps Included
Clamp Style	No Clamps Required
Clamp Material	No Clamps Required
Weight	3.3 lb (1.5 kg)
Product Box Height	4.88 in (124 mm)
Product Box Length	11.75 in (298 mm)
Product Box Width	9.5 in (241 mm)
Couplers Included	None
Mounting Hardware Included	Yes
Neck Flange	2.25 in (57 mm)
Style	Oval