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#97: 01-20-2013, 06:27 AM
Title: Contributor
Location: NY Metro Area
Car: 2010 Subaru Legacy 2.5i Premium
Posts: 532
iTrader: (2)
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K & N filters are In Take air filters where it is advertised to obtain HP gains. The better the air intake (more direct) the better the performance. Not the Interior cabin air filters...