🏍️ Feel the power. Hear the growl. Own the road.
The K&N Cold Air Intake System RK-3950 is a precision-engineered, dyno-tested upgrade designed specifically for 2001-2017 Harley Davidson models. Featuring a high-flow washable cotton air filter and custom heat shield, it guarantees increased horsepower and torque while enhancing engine sound. Easy to install in about 60 minutes, it improves throttle response and towing performance without voiding your factory warranty. Proudly made in the USA and backed by a lifetime limited warranty, this intake system is the ultimate performance boost for serious Harley riders.
| Brand | K&N |
| OEM Part Number | RK-3950 |
| Global Trade Identification Number | 00024844364647 |
| Manufacturer | K&N Engineering |
| Automotive Fit Type | Vehicle Specific Fit |
| UPC | 024844364647 |
| Model | RK-3950 |
| Item Weight | 4.7 pounds |
| Item model number | RK-3950 |
| Is Discontinued By Manufacturer | No |
| Exterior | Machined |
| Manufacturer Part Number | RK-3950 |
T**D
Good quality
Fit on my 2011 Harley Softail Blackline, bolted right up with no problems and was an easy upgrade from stock.
D**R
Perfect fitment better throttle response
Looks fantastic! Ordered this to replace a screamin eagle intake. At 5'8" the stock "football" cover really got in the way of my knee with forward controls, the k&n is still a little in the way but not nearly as bad. I immediately noticed a snappier throttle response and the ol butt dyno says it's got a little more power.Fitment on my 09 fxdb was flawless and installation was a breeze. The included instructions even have color photos, took 20-30 minutes to install with absolutely zero issues.
T**E
Perfect
Husband loved this. Easy to put on. Expensive but worth it.
M**I
Extra power
Awesome product just like any other K&N product.
K**R
easy to install with a little more power
easy to install with a little more power
R**S
Not a happy customer
Came from the factory with a bad threaded head bolt...also two screws that held the outer cover on was cross threaded. I had to find a hardware store that sold something similar so I could install it. I have K& N filters on both bikes and filters in three vehicles. This was my first ever issue
Ø**R
Great in every way
Delivery with Express, great job.Look is very suitable for my taste.Must do a Mapping for the Bike now.The only thing is, you need a bypass plug because my 2014 Twin Cam has a Connection.But no problem with the Bypass, 20 Euro.
T**M
2008 FXDF Fat Bob
Easy install and looks great on 2008 Fat Bob. Changes sound a bit. Not noticing a difference in performance but bike does backfire less than before. Drag Pipes were already installed and I have yet to tune. At this point, running well and don’t see a need for tune. Overall good purchase, nice look and maybe a bit more power.
Trustpilot
1 month ago
1 day ago
