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.
- Designed for Harley-Davidson motorcycles
- Increase horsepower and torque
- Easy to install
- Made in USA
- Backed by K&N warranty
| Estimated Horsepower Gain | 9.32 HP @ 4803 RPM |
|---|---|
| Replacement Filter | E-3980 |
| Air Filter Color | Red |
| Air Filter Material | Cotton Gauze |
| Warranty | No-Hassle Lifetime Limited |
| Product Style | Motorcycle Intake System |
| Air Filter Shape | Oval |
| Air Filter Height | 2.188 in (56 mm) |
| CARB EO Number | D-269-55 |
| Street Legal In All US States | Yes |
| TUV Approved (Europe) | No |
| Inlet Diameter | 1.313 in (33 mm) |
| Overall Height | 2.188 in (56 mm) |
| Top Material | Black Powder Coated |
| Weight | 2.8 lb (1.2 kg) |
| Product Box Height | 4.88 in (124 mm) |
| Product Box Length | 11.75 in (298 mm) |
| Product Box Width | 9.5 in (241 mm) |
| Mounting Hardware Included | Yes |
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