K&N Street Metal Hammer Chrome Air Intake System (RK-3933)
- Guaranteed increase in horsepower
- Aluminum backing plate with an integrated velocity stack provides a solid mounting surface
- Built in breathers replace external OE breathers
- Developed around an over-sized K&N high-flow air filter that is designed to boost performance, filtration and service intervals
- High-quality aluminum cover in several finishes
- Made in the U.S.A.
| Compatible Vehicles | |||
| Years | Make | Make | Notes |
| 1999-2000 | Harley-Davidson | Dyna Convertible FXDS-Conv | |
| 2008 | Harley-Davidson | Dyna Super Glide Custom Anniversary FXDC | |
| 2013 | Harley-Davidson | Dyna Super Glide Custom Anniversary FXDC | |
| 2007-2010 | Harley-Davidson | Dyna Super Glide FXD | |
| 2003 | Harley-Davidson | Dyna Super Glide Sport Anniversary FXDX | |
| 2012-2015 | Harley-Davidson | Dyna Switchback FLD | |
| 1999-2005 | Harley-Davidson | Electra Glide Classic FLHTC | |
| 2006 | Harley-Davidson | Heritage Softail FLST | |
| 2003 | Harley-Davidson | Heritage Springer Anniversary FLSTS | |
| 2000-2007 | Harley-Davidson | Softail Deuce FXSTD | |
| 2012-2015 | Harley-Davidson | Softail Slim FLS | |