Senior VR Member
Join Date: Jul 2008
Location: Second Star to the right, then straight on till morning.
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The K&N does a wonderful job of letting more air into the engine on the compression stroke. It does so, by doing an exceptionally poor job of actually filtering the incoming air. Independent tests have proved time and again that high-flo, reusable filters like the K&N fail miserably at their intended purpose. The result is a huge amount of small particle dirt and debris that gets stuck to vaporized oil from the filter, which then clogs your throttle body and intake runners. The mess isn't pretty. Save yourself the time, money and aggravation. Just stick with the OEM filter. Besides, the replacement interval is every 12,000 miles. Most motorcycles never SEE 12,000 miles in their lifetime before they get traded. By the time you replace the OEM with the K&N and install the necessary fuel processor, you'll have to buy a lifetime of OEM filters and then some.
Current Bikes -->
-1969 Indian MX125 -10-2009 to Present
-2014 Honda CTX1300 - 05-2015 to Present
Past Bikes ----->
-1973 Yamaha RD350
-1991 Harley Sportster 883 XL
-2000 Yamaha XV125
-2003 Piaggio Fly
-2004 Suzuki LS650 - 04-2005 to 07-2008
-2005 Boulevard C50 - 07-2008 to 5-2012
-2012 Vulcan 900 - 05-2012 to 05-2015
-2008 Yamaha FZ6 - 11-2008 to 04-2017
-2006 Star Virago - 05-2011 to 06-2017