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 XL1200C Sportster 1200 Custom 2004-2013
Harley Davidson XL1200L Sportster 1200 Low 2006-2011
Harley Davidson XL1200N Sportster 1200 Nightster 2007-2012
Harley Davidson XL1200R Sportster 1200 Roadster 2004-2008
Harley Davidson XL1200V Seventy-Two 2012-2013
Harley Davidson XL1200X Forty-Eight 2010-2013
Harley Davidson XL883 Sportster 2004-2008
Harley Davidson XL883C Sportster 883 Custom 2004-2009
Harley Davidson XL883L Sportster 883 Low 2005-2010
Harley Davidson XL883L SuperLow 2011-2014
Harley Davidson XL883N Iron 883 2009-2014
Harley Davidson XL883R Sportster 883 Roadster 2005-2007

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

Manufacturer's Part Number	RK-3944
CARB Approved	Yes