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K&N RK-3931

High-Performance Replacement Air Filter 2008-2016 Harley Davidson FXD All

K&N RK-3931

599-RK-3931

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K&N RK-3931 High-Performance Replacement Air Filter 2008-2016 Harley Davidson FXD All $151.99
High-Performance Replacement Air Filter
  • 2008-2016 Harley Davidson FXD All

  • Specifications:

    Color
    Red
    Mounting Hardware Included
    Yes
    Horse Power Increase
    7 HP
    Clamp Material
    No Clamps Required
    Clamps Included
    No Clamps Included
    Couplers Included
    0
    Filter Material
    Cotton Gauze
    Filter Color
    Red
    Top Style
    Metal
    Clamp Style
    No Clamps Required
    Air Filter Outlet Shape
    Not Flanged
    Top Material/Finish
    Aluminum
    RPM
    5100
    Air Filter Shape
    Unique
    Product Style
    Motorcycle Intake System
    Weight (lbs.)
    3.1 lb (1.4 kg)
    Overall Height
    2.5 in (64 mm)
    Style
    Teardrop
    Air Filter Height
    2.125 in (54 mm)
    Air Filter Inside Diameter
    0 in (0 mm)
    Size
    9 Inch
    CARB EO Number
    D-269-55
    Estimated HorsePower Gain
    6.54 HP @ 5100 RPM
    Inlet Diameter
    2.406 in (61 mm)
    Neck Flange
    2.406 in (61 mm)
    Replacement Filter
    E-3975
    Manufacturer's Part Number:
    RK-3931

    For over 40 years K&N has been designing and manufacturing performance air filters for the motorcycle enthusiast interested in maximizing horsepower and acceleration. Our air filter is designed to achieve high, virtually unrestricted air flow while maintaining filtration levels critical to ensure long engine life.

    Features:
  • High Air Flow with Excellent Filtration
  • Designed to Increase Horsepower and Acceleration
  • Washable and Reusable
  • Will NOT Void Motorcycle Warranty
  • Million Mile Limited Warranty on Street Applications
  • Emissions Legal in all 50 US States.
  • Economical, a K&N Air Filter Will Last the Life of Your Motorcycle
  • Works with Original Equipment Manufacturer Vehicle Electronics
  • Environmentally Friendly, K&N Reusable Air Filters Reduce the Volume of Disposable Air Filters that end up in Landfills

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