K&N - RK-3931
Intake System-Harley Davidson
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.
Air Box Included: No
Air Filter Color: Red
Air Filter Height: 2.125 in (54 mm)
Air Filter Inside Diameter: 0 in (0 mm)
Air Filter Material: Cotton Gauze
Air Filter Outlet Shape: Not Flanged
Air Filter Shape: Unique
Air Filter Washable: Yes
CARB EO Number: D-269-59
Clamp Color/Finish: Not Applicable
Clamp Material: No Clamps Required
Clamp Style: No Clamps Required
Clamps Included: No Clamps Included
Color / Finish: Red Filter, Aluminum Top
Couplers Included: None
Estimated Horsepower Gain: 6.54 HP @ 5100 RPM
Inlet Diameter: 2.406 in (61 mm)
Mass Air Flow Sensor Adapter Included: No
Mounting Hardware Included: Yes
Neck Flange: 2.406 in (61 mm)
Oil Included: Yes
Overall Height: 2.5 in (64 mm)
Package Material: Paperboard
Package Type: Box
Product Style: Motorcycle Intake System
Replacement Filter: E-3975
Size: 9 Inch
Street Legal In All US States: Yes
Style: Teardrop
Top Material: Aluminum
Top Style: Metal
TUV Approved (Europe): No
Warranty: No-Hassle Lifetime Limited
Weight: 3.1 lb (1.4 kg)
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