RK-3932 - K&N Custom Assemblies, Intake System-Harley Davidson direct from K&N

K&N RK-3932
Custom Assemblies > Intake System-Harley Davidson

Your Price: $249.00

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K&N’s New 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.

Available Information

Installation Instruction Sheet

Dyno Chart - 2010 Harley Davidson Fat Bob 96ci - 9.84hp

Dyno Chart - 2006 Harley Davidson Road King 88ci - 7.16hp

News Story - K&N Street Metal Intake Gives Harley-Davidson Motorcycles a Boost in Power and Visual Appeal

RK-3932 Vehicle Applications

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
TUV Approved (Europe): No
Air Filter Shape: Unique
Clamp Style: No Clamps Required
Color: Red
Filter Height: 2.125 in (54 mm)
Filter Material: Cotton Gauze
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
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.

Accessories

99-5050 - Filter Care Service Kit - Squeeze

E-3975 - Replacement Filter

Product Reviews Review part RK-3932

Dear sirs:

All I can say is most people won't believe this but then it's their loss...in miles per gallon that is. I Own 2 Harleys, a 1979 HD Sportster that several years ago I put a K&N air filter on and felt like it doubled it's performance, and a 1999 FLSTF Fat Boy. I didn't rest there, as a year ago I put a K&N on my 2001 Dodge Ram Quad cab Cummins turbo diesel and also felt the increase in performance not to mention the scream of that turbo that I had never really heard from the factory.

Recently two of my buddies and I went on a motorcycle trip to Stecoah, N.C. Before going on the trip I changed all my fluids and serviced the whole bike. I decided to buy a K&N air filter and pitch the stock one. They were riding a 2003 Honda Goldwing, a 2005 Harley Davidson Roadking and I took my 99 Fat Boy. Prior to installing the K&N my Fat Boy got between 40 & 43 MPG. As we went from fuel stop to fuel stop my mileage was as follows: 43 MPG, 47 MPG, 46 MPG, 48 MPG and 52 MPG EVERY tank after that. My buddies only mustered 44 -46 MPG. Most people would ask what about the weight and the speed. Well both my saddle bags were packed, I had a bag with 20 lbs. on my luggage rack, plus my TBags weighed in at about 50 lbs. The weight we carried was all about the same. The motorcycle weights were different, but not enough to warrant the major difference in MPG. Also mine is carbureted and theirs are fuel injected. As far as the speeds, we were cruising on the interstate at 70 to 80 MPH through a whole fuel run which was about 200 miles. Even when I was on the tail of the dragon, which is 318 turns in 11 miles, my mileage stayed at 52 MPG. All I can say is after over 1700 miles on that trip the K&N definitely paid for itself with the increase of 9-12 MPG.

So everyone has a choice. you can pay at the pumps or spend that money on the LAST air filter you will EVER buy.
Ronnie E., Glen Rock, Pennsylvania

Coming from Southern Calif. as I do I have been a big fan of K&N air filters for a long time and today was no exception. I just finished installing the RK-3909 air cleaner/filter kit and I must say I was not only impressed with the hardware and the way everything went together and fit perfect but the step by step instructions (with photos) were great. You see writing instructions is something I know a little about as a retired aerospace Mfg. Engineer I wrote instructions for the guys making the parts as well as putting together of rockets and all types of aircraft.
2007 Harley Davidson 96ci Softail Model Nightrain
Well done and thank you,
Lee Champagne, Orcas, Washington

My 2008 Colorado Crew Cab was great - until you had to put your foot in it and pass someone. I had always heard good things about K&N and the benefits to horsepower and acceleration. The filter to fit my vehicle's 3.7 liter engine had not even been released yet, but I told my local dealer to order it as soon as it was available. The difference in performance was immediate. The acceleration is now everything that it should be, and is completely responsive to what I need it to do. I have become an advocate for K&N and recommend them anytime I get the chance. A friend didn't hesitate in taking my advice when it came to upgrading his new Harley Davidson Dyna Glide! Kudos on a job well done!!!
Gary Lewis, Memphis, Tennessee

K&N RK-3932 fits the following:

2013 HARLEY DAVIDSON FXS BLACKLINE 103 CI - All