K&N High Flow Air Filter - WRX 2002-2014 / STI 2004-2017 / Legacy 1990-2004 / More
K&N’s replacement air filters are designed to increase horsepower and acceleration while providing excellent filtration and increased fuel economy.
Making over 1,200 different replacement air filters for virtually every vehicle on the road. These filters are washable and reusable and are custom designed to fit into your existing factory air box. Their drop-in design means adding performance is simple. With most vehicles you simply remove the disposable air filter and replace it with a K&N.
K&N stock replacement air filters for street vehicles are covered by the famous K&N Million-Mile Limited Warranty™ and will be THE LAST AIR FILTER YOUR VEHICLE WILL EVER NEED.
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