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K&N High Flow Air Filter - 02-07 WRX/STI

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 i. . . Show More >



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