Intake System-Harley Davidson

$299.99
Out of stock
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SKU
RK-3947X
Ships out in 1-2 business days
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. This series completely eliminates the stock OE air cleaner and replaces it with a high-flow K&N air intake system, increasing power. This intake system uses an extra tall K&N air filter, which means even more air flow and longer service intervals than standard RK-series air intake filters. Larger or custom engine builds most often benefit from higher levels of air flow, so the extra tall filter designs are a perfect choice for more powerful bikes. The K&N high-flow air filter is washable, reusable, pre-oiled and ready for installation, making an already easy install even faster. Just how fast? Less than 90 minutes, in most cases. The sturdy, custom aluminum backing plate mounts directly to the throttle body via an aluminum integrated, internal-run breather system. A durable mounting gasket is also included to help absorb vibration. The brilliant shine on this custom flare-shaped chrome cover give this air intake makes an impression on and off the road.
  • Designed for Harley-Davidson motorcycles
  • Increase horsepower and torque
  • Extra tall air filter design provides even more air flow and longer service intervals than standard RK-series air intakes
  • Easy to install
  • Made in the U.S.A.
  • Backed by K&N Million Mile Limited Warranty
Estimated Horsepower Gain8.1 HP @ 4.493 RPM
Replacement FilterE-3986
Air Filter ColorRed
Air Filter MaterialCotton Gauze
WarrantyNo-Hassle Lifetime Limited
Product StyleMotorcycle Intake System
Air Filter Height3.125 in (79 mm)
CARB EO NumberD-269-59
Street Legal In All US StatesSee Vehicle Applications
TUV Approved (Europe)No
Overall Height6.25 in (159 mm)
Top MaterialChrome
Weight4.3 lb (2 kg)
Product Box Height4.88 in (124 mm)
Product Box Length11.75 in (298 mm)
Product Box Width9.5 in (241 mm)
Mounting Hardware IncludedYes
Cross References
Harley-Davidson 2925308
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