K&N Replacement Air Filters are ideal for extended use in dirty and dusty off-road riding and provide clean carburetion even at high altitude. As a rule, no jet changes are required with just a K&N filter element, however the spark plug condition should be checked for proper mixture after the first few miles of riding. If the airbox has been modified for increased air flow, the main jet size will need to be increased to provide the proper fuel mixture.
Here are some interesting facts about K&N Air Filters:
Designed to increase acceleration and horsepower
Washable and reusable
Will NOT void US warranty
Emission legal in all 50 US States
Replacement air filters for most street bikes, sport bikes, dirt bikes, cruisers, dual sport bikes, touring bikes, ATV's and more!
APPLICATIONS:
2006-2008 ARCTIC CAT 400 4X4 AUTO, LE, TRV PLUS - All
2005-2006 ARCTIC CAT 500 4X4 500, AUTO, LE, TBX, TRV - All
2007-2008 ARCTIC CAT 500 4X4 AUTO TRV, M4 500 - All
2006-2007 ARCTIC CAT PROWLER XT 650 H1 650 - All
2005-2007 ARCTIC CAT 650 H1 4X4 AUTO 650, LE, TBX, TRV PLUS – All | 
