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K&N

K&N Cold Air Intake System: High-Flow Air Filter, Increase Performance & Acceleration: Compatible with 2001-2017 Harley Davidson: (See Product Descriptions for Select Models), 57-1137

  • Based on 193 reviews
Condition: New
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Availability: Only 2 left in stock, order soon!
Fulfilled by Amazon
Arrives Monday, Jul 21
Order within 1 hour and 47 minutes
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Style: Black


Features

  • DYNO TESTING YOU CAN TRUST: K&N air intake horsepower/torque testing is performed on wheel-based dynamometers and the reports are included with each intake system.
  • IMPROVED ENGINE SOUND - HEAR THE GROWL: K&Ns intake systems allow your engine to breathe and sound as it should- your engine will growl on acceleration and return to quiet once at speed.
  • BETTER TOWING: K&N Air intake kit improves acceleration and uphill performance when towing by improving throttle response, overall horsepower and torque. Excellent for daily and highway driving.
  • PREMIUM ENGINE PROTECTION FROM A TRUSTED BRAND: K&N air intake will not void manufacturer vehicle warranty & No-Hassle Lifetime Limited Warranty protects for the life of your vehicle.
  • HIGH-FLOW REUSABLE AIR FILTER: 4 layers of pleated, breathable cotton with K&Ns red filter oil to absorb dirt & dust particles, allowing clean air to continue flowing into your engine, only needs cleaning every 100k miles under normal highway conditions.
  • EASY TO INSTALL: Includes detailed, step-by-step instructions & all necessary parts- the entire air intake system can typically be installed in less than 60 minutes with basic hand tools.
  • MADE IN THE USA: Proudly made in the USA for trusted quality & reliability and backed by US based customer support.

Description

K&N is the inventor of the Air Intake System and has over 50 years of experience in the performance filtration industry. Proudly designed and manufactured in the USA, this premium cold air intake system is specifically designed for your vehicle and is dyno tested to provide a guaranteed increase in horsepower. It features a high flow intake tube, custom heat shield, and oversized K&N Washable High-Flow Cotton Air Filter for ultimate airflow. This Intake system replaces the restrictive OEM air box to provide an improved driving experience for daily driving or towing. It installs easily in about 60 minutes and is backed by a No-Hassle Lifetime Limited Warranty and will not void your factory warranty.Compatible Vehicles:2012-2016 HARLEY DAVIDSON FLD Switchback2007-2007 HARLEY DAVIDSON FLHR Road King2007-2007 HARLEY DAVIDSON FLHRC Road King Classic2002-2006 HARLEY DAVIDSON FLHRCI Road King Classic F/I2003-2006 HARLEY DAVIDSON FLHRI Road King F/I2007-2007 HARLEY DAVIDSON FLHRS Road King Custom2004-2006 HARLEY DAVIDSON FLHRSI Road King Custom F/I2007-2007 HARLEY DAVIDSON FLHT Electra Glide Standard2007-2007 HARLEY DAVIDSON FLHTC Electra Glide Classic2002-2006 HARLEY DAVIDSON FLHTCI Electra Glide Classic F/I2007-2007 HARLEY DAVIDSON FLHTCU Ultra Classic Electra Glide2002-2006 HARLEY DAVIDSON FLHTCUI Electra Glide Ultra Classic F/I2003-2006 HARLEY DAVIDSON FLHTI Electra Glide Standard F/I2007-2007 HARLEY DAVIDSON FLHX Street Glide2006-2006 HARLEY DAVIDSON FLHXI Street Glide F/I2012-2015 HARLEY DAVIDSON FLS Softail Slim2007-2015 HARLEY DAVIDSON FLSTC Heritage Softail Classic2002-2006 HARLEY DAVIDSON FLSTCI Heritage Softail Classic F/I2007-2015 HARLEY DAVIDSON FLSTF Fat Boy2010-2015 HARLEY DAVIDSON FLSTFB Softail Fat Boy Lo2001-2006 HARLEY DAVIDSON FLSTFI Fat Boy F/I2006-2006 HARLEY DAVIDSON FLSTI Heritage Softail F/I2007-2015 HARLEY DAVIDSON FLSTN Softail Deluxe2005-2006 HARLEY DAVIDSON FLSTNI Softail Deluxe F/I2008-2011 HARLEY DAVIDSON FLSTSB Softail Cross Bones2007-2007 HARLEY DAVIDSON FLSTSC Softail Springer Classic2005-2006 HARLEY DAVIDSON FLSTSCI Softail Springer Classic F/I2001-2003 HARLEY DAVIDSON FLSTSI Heritage Springer F/I2007-2007 HARLEY DAVIDSON FLTR Road Glide2002-2006 HARLEY DAVIDSON FLTRI Road Glide F/I2008-2009 HARLEY DAVIDSON FXCW Rocker2008-2011 HARLEY DAVIDSON FXCWC Rocker C

Brand: K&N


Product Dimensions: 11.75"L x 9.5"W x 4.88"H


OEM Part Number: 57-1137


Global Trade Identification Number: 08


Shape: Oblong


Brand: ‎K&N


Product Dimensions: ‎11.75"L x 9.5"W x 4.88"H


OEM Part Number: ‎57-1137


Global Trade Identification Number: ‎08


Shape: ‎Oblong


Manufacturer: ‎K&N Engineering


Automotive Fit Type: ‎Vehicle Specific Fit


UPC: ‎024844368508


Model: ‎Performance Air Intake System


Item Weight: ‎4.16 pounds


Country of Origin: ‎China


Item model number: ‎57-1137


Exterior: ‎Machined


Manufacturer Part Number: ‎57-1137


Date First Available: January 25, 2019


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Monday, Jul 21

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Top Amazon Reviews

    • 2014 Wide Glide
Style: Silver
Review Image by stingray13485 stingray13485
Review Image by stingray13485 stingray13485
Decent performance for the price. I installed this on my 2014 Wide Glide and put one on my 2022 Fat Bob (different part #). One thing that made installation a little easier for me was starting 2 of the acorn nuts on the intake tube without washers and snugging them down which makes it easier to thread the other 2 on with washers. Then remove the first 2, add the washers and tighten all 4. I didn't need the spacers. ... show more
Reviewed in the United States on July 24, 2024 by stingray13485 stingray13485
    • Good performance
Style: Black
Fits my 03 road king classic just fine. Defiantly could feel a difference in HP and Torq. A little to big for the look im going for but performance wise its great.
Reviewed in the United States on April 3, 2025 by Mac
    • 2009 deluxe
Style: Black
Review Image by Amazon Customer Amazon Customer
Easy to install
Reviewed in the United States on March 11, 2024 by Amazon Customer Amazon Customer
    • K&N sucker.
Style: Silver
Awesome cheap upgrade with needing to retune the bike. K&N appearance is top quality
Reviewed in the United States on September 2, 2024 by chris
    • It's off the cool chart
Style: Black
Review Image by jockeyshift58 jockeyshift58
Everyone told me... you won't like it, it will get in the way of the brake, your leg will hit it. None of that was the case, I'm damn happy I bought it. It's not a safty issue whatsoever for me. I do have control extensions on, & I'm 6ft. I love it, I don't like the cheaper ones, but the K&N is cool af in my opinion ... show more
Reviewed in the United States on December 6, 2024 by jockeyshift58 jockeyshift58
    • Pretty Good
Style: Black
The media could not be loaded. Overall seems to be a pretty good product. I’m gonna take it out on the road tomorrow so we will see Didn’t really add a whole heck of a lot of power just a little bit of throttle response pretty easy to put on.
Reviewed in the United States on June 14, 2024 by Mark Durham
    • Fits touring bikes! Kinda...
Style: Black
Review Image by Chandler Chandler
Review Image by Chandler Chandler
Review Image by Chandler Chandler
I went out on a limb to see how this would fit on my 07 Electra, and im not disappointed. You cannot use the filter that comes with the kit unless you have no lower fairings, but that's ok, a quick trip to O'Reilly for a $35 specter stubby air filter with a 4" inlet slips right over the entire housing and gets the job done. Makes a pretty good sound and feeds my 10.8:1cr 107ci Twinkie well. Also is the perfect diameter for a 62mm throttle body opening! Just trim the gasket a little once it's installed for a smooth transition of air. Over all. I'm happy with it. Ps ignore my ratty pipes lol. ... show more
Reviewed in the United States on August 16, 2024 by Chandler Chandler
    • Great performance
Style: Black
Review Image by Buddy Buddy
The KN air filter kit for my 06 Harley Softail is one of those items that either appeals to you or it doesn't. Personally, I appreciate its look and the benefits it provides. However, I understand that some people find its size and location to be a bit awkward. Ultimately, it comes down to personal preference and whether or not it aligns with your aesthetic and functional preferences. Only complaint was getting the small mount screws was pain. ... show more
Reviewed in the United States on June 9, 2023 by Buddy Buddy

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