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RK-3931 K&N Intake System-Harley Davidson
Original price was: $199.99.$95.99Current price is: $95.99.
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K&N Air Cleaner Assemblies are designed to get more horsepower from your Harley-Davidson® motorcycle. These air cleaner assemblies replace the stock air filter and backplate with an oversized K&N Air Filter and custom aluminum backing plate. These assemblies utilizes the stock cover to maintain stock appearance.
- Designed to increase horsepower & torque
- Dyno-tuned velocity stack
- Excellent Air Filtration
- Washable and reusable lifetime air filter
- Not legal for highway use in states adopting California emission regulations
| Estimated Horsepower Gain | 6.54 HP @ 5100 RPM |
|---|---|
| Top Style | Metal |
| Neck Flange | 2.406 in (61 mm) |
| Mounting Hardware Included | Yes |
| Couplers Included | None |
| Product Box Width | 9.5 in (241 mm) |
| Product Box Length | 11.75 in (298 mm) |
| Product Box Height | 4.88 in (124 mm) |
| Weight | 3.1 lb (1.4 kg) |
| Clamp Material | No Clamps Required |
| Clamp Style | No Clamps Required |
| Clamps Included | No Clamps Included |
| Top Material | Aluminum |
| Overall Height | 2.5 in (64 mm) |
| Replacement Filter | E-3975 |
| Inlet Diameter | 2.406 in (61 mm) |
| TUV Approved (Europe) | No |
| Street Legal In All US States | Yes |
| CARB EO Number | D-269-59 |
| Air Filter Outlet Shape | Not Flanged |
| Air Filter Height | 2.125 in (54 mm) |
| Air Filter Shape | Unique |
| Size | 9 Inch |
| Product Style | Motorcycle Intake System |
| Warranty | No-Hassle Lifetime Limited |
| Air Filter Material | Cotton Gauze |
| Air Filter Color | Red |
| Style | Teardrop |
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