Guaranteed increase in horsepower. Developed around an over-sized K&N high-flow air filter that is designed to boost performance, filtration and service intervals. Aluminum backing plate with an integrated breather system and velocity stack provides a solid mounting surface. Made in the U.S.A.. NOTE: Not legal for sale or use on any pollution controlled motor vehicle..


Harley Davidson FLD Switchback 2012-2016
Harley Davidson FLHR Road King 1999-2007
Harley Davidson FLHRC Road King Classic 2007
Harley Davidson FLHRS Road King Custom 2004-2007
Harley Davidson FLHT Electra Glide Standard 1999-2007
Harley Davidson FLHTC Electra Glide Classic 2007
Harley Davidson FLHTC Electra Glide Classic 1999-2005
Harley Davidson FLHTCU Electra Glide Ultra Classic 2007
Harley Davidson FLHX Street Glide 2007
Harley Davidson FLS Softail Slim 2012-2015
Harley Davidson FLST Heritage Softail 2006
Harley Davidson FLSTC Heritage Softail Classic 2000-2015
Harley Davidson FLSTF Fat Boy 2000-2015
Harley Davidson FLSTFB Fat Boy Lo 2010-2015
Harley Davidson FLSTN Softail Deluxe 2005-2015
Harley Davidson FLSTS Heritage Springer 2000-2003
Harley Davidson FLSTSB Cross Bones 2008-2011
Harley Davidson FLSTSC Softail Springer Classic 2005-2007
Harley Davidson FLTR Road Glide 2007
Harley Davidson FLTR Road Glide 2000-2002
Harley Davidson FLTRX Road Glide Custom 2011
Harley Davidson FXCW Rocker 2008-2009
Harley Davidson FXCWC Rocker C 2008-2011
Harley Davidson FXD Dyna Super Glide 2007-2010
Harley Davidson FXD Dyna Super Glide 1999-2005
Harley Davidson FXDB Street Bob 2007-2017
Harley Davidson FXDC Super Glide Custom 2007-2014
Harley Davidson FXDC Super Glide Custom 2005
Harley Davidson FXDF Fat Bob 2008-2017
Harley Davidson FXDL Dyna Low Rider 2007-2009
Harley Davidson FXDL Dyna Low Rider 1999-2005
Harley Davidson FXDL Low Rider 2014-2017
Harley Davidson FXDS-Conv Dyna Convertible 1999-2000
Harley Davidson FXDWG Dyna Wide Glide 2010-2017
Harley Davidson FXDWG Dyna Wide Glide 2007-2008
Harley Davidson FXDWG Dyna Wide Glide 1999-2005
Harley Davidson FXDX Dyna Super Glide Sport 2005
Harley Davidson FXDX Dyna Super Glide Sport 1999-2003
Harley Davidson FXDXT Dyna Super Glide T-Sport 2001-2003
Harley Davidson FXS Blackline 2011-2013
Harley Davidson FXSB Breakout 2013-2015
Harley Davidson FXST Softail Standard 2007
Harley Davidson FXSTB Night Train 2007-2009
Harley Davidson FXSTC Softail Custom 2007-2010
Harley Davidson FXSTD Softail Deuce 2007

Warning: Cancer and Reproductive Harm – www.P65Warnings.ca.gov

Manufacturer's Part Number	RK-3933B
CARB Approved	Yes