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K&N RK-3932 4.9 out of 5 stars 8 Customer Reviews
Custom Assemblies > Intake System-Harley Davidson

 List Price: $268.92
Your Price: $161.99

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K&N’s Street Metal™ Series High-Flow Air Intake Systems provide a good looking appearance, offer increased airflow and deliver more horsepower & torque to your Harley-Davidson® motorcycle. These intake systems increase power by eliminating the stock OE air cleaner and replacing it with a complete High-Flow Air Intake System. The sturdy, custom aluminum backing plate mounts directly to the throttle body via an aluminum integrated, internal-run breather system. The intake system comes with a K&N Air Filter for high air flow and long service intervals. A durable mounting gasket is also included to help absorb vibration. The K&N High-Flow Air Filter™ is washable, reusable, pre-oiled and ready for installation. Simple designed custom covers give this air intake good looks while powering down the highway or at your local show.

[RK Series Street Metal High Flow Air Intakes for Harley-Davidson Motorcycles]
  • Designed for Harley-Davidson motorcycles
  • Increase horsepower and torque
  • Easy to install
  • Made in USA
  • Backed by K&N warranty
Available Information
Installation Instruction Sheet
RK-3932 Vehicle Applications
Dyno Chart - 2010 Harley Davidson Fat Bob 96ci - 9.84HP Increase
Dyno Chart - 2006 Harley Davidson Road King 88ci - 7.16HP Increase
News Story - K&N Street Metal Intake Gives Harley-Davidson Motorcycles a Boost in Power and Visual Appeal

Part RK-3932 Product Specifications
Product Style: Motorcycle Intake System
Estimated Horsepower Gain: 7.16 HP @ 5206 RPM
Street Legal In All US States: No
Air Filter Color: Red
TUV Approved (Europe): No
Air Filter Height: 2.125 in (54 mm)
Air Filter Inside Diameter: 6.375 in (162 mm)
Air Filter Material: Cotton Gauze
Air Filter Outlet Shape: Not Flanged
Air Filter Shape: Unique
Clamp Material: No Clamps Required
Clamp Style: No Clamps Required
Color: Red
Filter Material: Cotton Gauze
Inlet Diameter: 3.5 in (89 mm)
Intake Pipe Ports: All intake tube ports needed for the specified applications are included
Mass Air Flow Sensor Adapter Included: Mass Air Flow Sensor Adapter Included When Required
Mounting Hardware Included: Yes
Neck Flange: 3.5 in (89 mm)
Overall Height: 2.25 in (57 mm)
Replacement Filter: E-3975
Size: 6-8
Style: Triangle
Top Material/Finish: Chrome
Top Style: Metal
Vacuum Tubing Included: No
California Restricted: Not legal for sale or use in California
Total Height: 1.875 in (48 mm)
Weight: 4.4 lb (2 kg)
Product Box Length: 11.75 in (298 mm)
Product Box Width: 9.5 in (241 mm)
Product Box Height: 4.88 in (124 mm)

Horsepower gains based on similar vehicle dynamometer test. Results will vary.

Product Reviews    See all reviews!  Review part RK-3932

 Best air intake system I have found. Even better than the hyper charger I had before. This is the 3rd review that I have done and I dont know why you wont post this .I do wish you guys would sell the replacement filter alitte bit cheaper.
Randy Sybert, Ohio
 For the price I like this air intake. I even like it better then the Hyper Charger I had on my old bike. I would tell everybody that this air intake is the way to go. You guys make good stuff. It would be nice if you came down on the price of the replacement filter but hey, I even have K&N filters on my suv. I won't use anything but your filters.
Randy Sybert, Weston, Ohio
 For the money I couldnt have gotten anything better. I like this air cleaner better than the [brand] that I had.
Randall Sybert, Weston, Ohio