SKU: BBWQ-RK-3947XB

K&N RK-3947XB Intake System-Harley Davidson

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 black finish on this custom flare-shaped cover give this air intake makes an impression on and off the road.

Additional Attributes:

GTIN: 00024844363299
Prop 65 Yes/No: Yes
Replacement Filter: E-3986
RPM: 4
Street Legal In All US States: See Vehicle Applications
Top Material: Black Powder Coated
TUV Approved (Europe): No
Warranty: No-Hassle Lifetime Limited
Weight: 4.3 lb (2 kg)
Air Filter Color: Red
Air Filter Height: 3.125 in (79 mm)
Air Filter Material: Cotton Gauze
Air Filter Washable: Yes
CARB EO Number: D-269-59
Color / Finish: Red Filter, Metal Top
Estimated Horsepower Gain: 8.1 HP @ 4.493 RPM
Horse Power Increase: 8 HP
Mounting Hardware Included: Yes
Overall Height: 6.25 in (159 mm)
Package Material: Paperboard
Package Type: Box
Product Style: Motorcycle Intake System
Prop 65 (C, R or CR): CR
Prop 65 – Short Label: WARNING: Cancer and Reproductive Harm – www.p65warnings.ca.gov
Prop 65 Warning Label: https://www.knfilters.com/images/l/prop65.jpg