🏍️ Ride louder, faster, and smarter with K&N’s cold air intake system!
The K&N Cold Air Intake System RK-3951 is a vehicle-specific upgrade for 2008-2017 Harley Davidson models that boosts horsepower and torque by optimizing airflow. Dyno-tested for verified performance gains, it enhances throttle response and engine sound while featuring a durable, reusable high-flow filter. Easy to install in under 60 minutes, it comes with a lifetime warranty and is proudly made in the USA.
| Brand | K&N |
| OEM Part Number | RK-3951 |
| Global Trade Identification Number | 00024844364623 |
| Manufacturer | K&N Engineering |
| Automotive Fit Type | Vehicle Specific Fit |
| UPC | 024844364623 |
| Model | RK-3951 |
| Item Weight | 4.72 pounds |
| Item model number | RK-3951 |
| Is Discontinued By Manufacturer | No |
| Manufacturer Part Number | RK-3951 |
A**S
It works for me
Easy swap out performs great looks good excellent finish to my stage 1 on my 08 Electra Glide ultra classic it does stick out a bit further than the factory one does I'm 6 foot so it doesn't bother me but someone with shorter legs might not like it
T**E
Looks great
It was easy to install works great !
T**!
Awesome look.
What can I say? This is a K&N product It works perfectly and looks great thank you.
R**X
Pretty straight forward.
Easy to install and I’m just hoping I don’t have to “tune” my 2008 streetglide. 106”
A**L
Air intake
Wow! Great product, amazing look, fit perfectly.
A**R
Very easy to install
I love the added performance and the way it looks on my bike
D**M
Two Stars
No send it back
S**E
Love the look but for some reason it didn't fit ...
Love the look but for some reason it didn't fit my bike I ad to make spacers for it
Trustpilot
2 weeks ago
2 weeks ago
