K&N 57-1137S Performance Air Intake System
  • K&N 57-1137S Performance Air Intake System
  • K&N 57-1137S Performance Air Intake System
  • K&N 57-1137S Performance Air Intake System
  • K&N 57-1137S Performance Air Intake System
  • K&N 57-1137S Performance Air Intake System
K&N

K&N 57-1137S Performance Air Intake System

Part Number:57-1137S
K&N FIPK air intakes for select Harley-Davidson Touring, Softail, Twin-Cam and Sportster motorcycle models increase power by eliminating the restrictive stock OE air cleaner and replacing it with a K&N high-flow air filter and cast aluminum intake tube. These intakes come with a die-cast aluminum throttle-body mounting plate and mounting hardware. K&N high-flow intake systems give your Harley an aggressive appearance while providing a significant increase in airflow resulting in more power.
  • Built-in breathers replace external OE breathers
  • Cast aluminum high-performance intake tube
  • Designed to improve throttle response and engine sound
  • Easy to install, usually in 90 minutes or less
  • Guaranteed to increase horsepower
  • Integrated internal velocity stack
  • Lasts up to 100,000 miles before service is required (depending on driving conditions)
  • Washable and reusable K&N High-Flow cotton air filter that provides outstanding performance and protection
Retail price
  • $199.99
Features
  • SKU
    57-1137S
  • Brand
    K&N
  • Air Filter Color
    Red
  • Air Filter Height
    5.25 in.
  • Air Filter Outlet Length
    4.0 in.
  • Air Filter Outlet Shape
    Round
  • Air Filter Outlet Width
    2.984 in.
  • Clamp Color
    Natural
  • Clamp Material
    Stainless Steel
  • Clamp Quantity
    1
  • Clamp Style
    Regular
  • Estimated Horsepower Gain
    5.35 HP @ 4758 RPM
  • Feature Note
    All Intake Tube Ports Needed for the Specified Applications are Included
  • Feature Note
    Filter Oil Is Included
  • Filter Material
    Cotton Gauze
  • Includes Air Box
    No
  • Includes Couplers
    No
  • Includes Mass Air Flow Sensor Adapter
    No
  • Includes Mounting Hardware
    Yes
  • Intake Pipe Outlet Shape
    Oval
  • Intake Pipe Outlet Width
    4.0 in.
  • Package Material
    Box
  • Package Material
    Corrugated
  • Pipe Color
    Silver
  • Pipe Material
    Die-Cast Aluminum
  • Product Series
    Motorcycle Intake System
  • Prop 65 - Required to list in California with Warning
    Yes
  • Prop 65 - Short Label
    WARNING: Cancer and Reproductive Harm - www.p65warnings.ca.gov
  • Prop 65 - Type
    Cancer and Reproductive
  • Prop 65 - Warning Image Label
    https://www.knfilters.com/images/l/prop65.jpg
  • Replacement Filter
    RE-5287
  • TUV Approved (Europe)
    No
  • Warranty
    Limited Lifetime
  • Washable Filter
    Yes
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