SKU: 57-1137 | UPC: 024844368508
K&N 2001-2017 Harley Davidson Softail Dyna FI Performance Air Intake System
K&N 57-1137 Performance Air Intake System delivers increased airflow to 2001-2017 Harley-Davidson Softail Dyna and compatible FI Twin Cam models by replacing the restrictive stock OE air cleaner. This complete system includes a high-flow washable air filter cast aluminum intake tube and throttle-body mounting plate for guaranteed horsepower gains. It enhances throttle response provides a deeper engine sound and adds an aggressive look with built-in breathers.
Key Features
- High-Flow Air Filter: Washable reusable K&N cotton filter lasts up to 100000 miles before service depending on conditions while protecting the engine and boosting performance
- Cast Aluminum Intake Tube: High-performance design eliminates restrictions for maximum airflow and power delivery
- Built-in Breathers: Replaces external OE breathers for a cleaner setup and improved air induction
- Integrated Velocity Stack: Optimizes air velocity into the throttle body for sharper throttle response
- Easy Installation: Completes in 90 minutes or less with included die-cast aluminum mounting plate and hardware
Product Notes
- Enhances engine sound and provides distinctive aggressive appearance
- Filter requires cleaning based on riding conditions up to 100000 miles
- Packaged for secure shipping with protective materials
Installation Notes
- Professional installation recommended.
- Basic hand tools required typically 90 minutes or less
- Direct bolt-on fit with provided mounting hardware and throttle-body plate
This Part Fits
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2002-2006 | Harley-Davidson | FLHTCI Electra Glide Classic | Base |
| 2007 | Harley-Davidson | FLHTCU Electra Glide Ultra Classic | Base |
| 2002-2006 | Harley-Davidson | FLHTCUI Electra Glide Ultra Classic | Base |
| 2003-2006 | Harley-Davidson | FLHTI Electra Glide Standard | Base |
| 2002-2006 | Harley-Davidson | FLSTCI Heritage Softail Classic | Base |
| 2007-2015 | Harley-Davidson | FLSTF Fat Boy | Base |
| 2010-2015 | Harley-Davidson | FLSTFB Fat Boy Lo | Base |
| 2001-2006 | Harley-Davidson | FLSTFI Fat Boy | Base |
| 2002-2006 | Harley-Davidson | FLTRI Road Glide | Base |
| 2008-2009 | Harley-Davidson | FXCW Rocker | Base |
| 2008-2011 | Harley-Davidson | FXCWC Rocker C | Base |
| 2007-2010 | Harley-Davidson | FXD Dyna Super Glide | Base |
| 2007-2012 | Harley-Davidson | FXDB Street Bob | Base |
| 2004-2006 | Harley-Davidson | FXDI Dyna Super Glide | Base |
| 2006 | Harley-Davidson | FXDI35 Dyna 35th Anniversary Super Glide | Base |
| 2007-2009 | Harley-Davidson | FXDL Dyna Low Rider | Base |
| 2014-2017 | Harley-Davidson | FXDL Dyna Low Rider | Base |
| 2004-2006 | Harley-Davidson | FXDWGI Dyna Wide Glide | Base |
| 2004-2005 | Harley-Davidson | FXDXI Dyna Super Glide Sport | Base |
| 2011-2013 | Harley-Davidson | FXS Blackline | Base |
| 2014-2015 | Harley-Davidson | FXSB Breakout | Base |
| 2006 | Harley-Davidson | FLSTI Heritage Softail | Base |
| 2007-2015 | Harley-Davidson | FLSTN Softail Deluxe | Base |
| 2005-2006 | Harley-Davidson | FLSTNI Softail Deluxe | Base |
| 2008-2011 | Harley-Davidson | FLSTSB Cross Bones | Base |
| 2006 | Harley-Davidson | FXDBI Street Bob | Base |
| 2007-2014 | Harley-Davidson | FXDC Super Glide Custom | Base |
| 2005-2006 | Harley-Davidson | FXDCI Super Glide Custom | Base |
| 2016-2017 | Harley-Davidson | FXDF Fat Bob | Base |
| 2007-2009 | Harley-Davidson | FXST Softail Standard | Base |
| 2007-2009 | Harley-Davidson | FXSTB Night Train | Base |
| 2001-2006 | Harley-Davidson | FXSTBI Night Train | Base |
| 2007-2010 | Harley-Davidson | FXSTC Softail Custom | Base |
| 2007 | Harley-Davidson | FLHRS Road King Custom | Base |
| 2004-2006 | Harley-Davidson | FLHRSI Road King Custom | Base |
| 2007 | Harley-Davidson | FLHT Electra Glide Standard | Base |
| 2007 | Harley-Davidson | FLHTC Electra Glide Classic | Base |
| 2007 | Harley-Davidson | FLHX Street Glide | Base |
| 2006 | Harley-Davidson | FLHXI Street Glide | Base |
| 2012-2015 | Harley-Davidson | FLS Softail Slim | Base |
| 2007-2015 | Harley-Davidson | FLSTC Heritage Softail Classic | Base |
| 2007 | Harley-Davidson | FLSTSC Softail Springer Classic | Base |
| 2005-2006 | Harley-Davidson | FLSTSCI Softail Springer Classic | Base |
| 2001-2003 | Harley-Davidson | FLSTSI Heritage Springer | Base |
| 2007 | Harley-Davidson | FLTR Road Glide | Base |
| 2007 | Harley-Davidson | FXSTD Softail Deuce | Base |
| 2001-2006 | Harley-Davidson | FXSTDI Softail Deuce | Base |
| 2001-2002 | Harley-Davidson | FXSTI Softail Standard | Base |
| 2001-2006 | Harley-Davidson | FXSTSI Springer Softail | Base |
| 2012-2016 | Harley-Davidson | FLD Switchback | Base |
| 2007 | Harley-Davidson | FLHR Road King | Base |
| 2007 | Harley-Davidson | FLHRC Road King Classic | Base |
| 2002-2006 | Harley-Davidson | FLHRCI Road King Classic | Base |
| 2003-2006 | Harley-Davidson | FLHRI Road King | Base |
| 2014-2017 | Harley-Davidson | FXDL Low Rider | Base |
| 2004-2006 | Harley-Davidson | FXDLI Dyna Low Rider | Base |
| 2017 | Harley-Davidson | FXDLS Low Rider S | Base |
| 2007-2008 | Harley-Davidson | FXDWG Dyna Wide Glide | Base |
| 2010-2017 | Harley-Davidson | FXDWG Dyna Wide Glide | Base |
Why Choose K&N?
- Engineered air intake systems with dyno-proven horsepower increases
- Washable filters backed by million-mile limited warranty
- Precision-machined components for exact fit on Harley-Davidson models
Frequently Asked Questions
- Q: Will this fit my 2006 Harley-Davidson Dyna Super Glide FXD?
A: Yes the 57-1137 fits 2006 FXD FXDI35 FXDL FXDWGI models with Delphi fuel injection - Q: What materials are used in the intake tube and filter?
A: Cast aluminum tube for durability and K&N high-flow cotton gauze filter that is oiled washable and reusable - Q: What warranty covers this air intake system?
A: K&N provides a No-Hassle Lifetime Warranty on the filter and a limited warranty on the system components
Shipping &. Handling
- Method: UPS Ground or FedEx Ground
- Availability: In stock – ships same or next business day
- Packaging: Ships in original box 22.2 in x 14.5 in x 9.8 in
- Weight: 4.5 lbs





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