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K&N RK-3938 Intake System-Harley Davidson

Custom Assemblies > Intake System-Harley Davidson
Rating Star 1 Rating Star 2 Rating Star 3 Rating Star 4 Rating Star 5   5.0 out of 5 stars   1 Customer Review
  • Designed for Harley-Davidson motorcycles
  • Increase horsepower and torque
  • Easy to install
  • Made in USA
  • Backed by K&N warranty
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 glossy chromed custom cover makes this air intake a definitive style statement. Emphasize your good taste with this one.

[RK Series Street Metal High Flow Air Intakes for Harley-Davidson Motorcycles]

Product Specifications

Estimated Horsepower Gain10.67 HP @ 4882 RPM
Replacement FilterE-3336
Air Filter ColorRed
Air Filter MaterialCotton Gauze
Product StyleMotorcycle Intake System
Air Filter ShapeRound
Air Filter Height2.25 in (57 mm)
Air Filter Inside Diameter6.125 in (156 mm)
Air Filter Outlet ShapeNot Flanged
CARB EO NumberD-269-55
Street Legal In All US StatesSee Application Link Above
TUV Approved (Europe)No
Inlet Diameter2.313 in (59 mm)
Overall Height4.75 in (121 mm)
Top StyleChrome
Top MaterialChrome
Clamps IncludedNo Clamps Included
Clamp StyleNo Clamps Required
Clamp MaterialNo Clamps Required
Weight4.6 lb (2.1 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
Neck Flange2.313 in (59 mm)
Horsepower gains based on similar vehicle dynamometer test. Results will vary.

K&N RK-3938 Intake System-Harley Davidson Product Reviews

Tuesday, February 24, 2015 - Part RK-3938
I installed this kit on my 2013 road glide io3. Put it on with ease. I noticed a gain in power right off the bat. I'm having the bike tuned shortly after I put the cams and [brand] header on. I would highly recommend this kit for baggers. If I noticed a difference in power, I know you would to.

Galion Ohio