The K&N RK-3942 High-Flow Air Intake System increases engine intake airflow and delivering more horsepower & torque to your Harley-Davidson motorcycle. The intake system increases 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. The K&N High-Flow Air Filter is washable, reusable, pre-oiled and ready for installation.
Installation InstructionsUser 1This Part Fits:
| Year |
Make |
Model |
Submodel |
| 2013-2015 |
Harley-Davidson |
FLSTC Heritage Softail Classic |
Base |
| 2013-2015 |
Harley-Davidson |
FLSTF Fat Boy |
Base |
| 2013-2015 |
Harley-Davidson |
FLSTFB Fat Boy Lo |
Base |
| 2013-2015 |
Harley-Davidson |
FLSTN Softail Deluxe |
Base |
| 2013-2015 |
Harley-Davidson |
FXSB Breakout |
Base |
| 2013-2014 |
Harley-Davidson |
FXSBSE CVO Breakout |
Base |
⚠️ California Proposition 65 Warning:
This product may expose you to chemicals known to the State of California
to cause cancer or reproductive harm.
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