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 1
This 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 |
