2008-2013 Subaru Forester Engine Air Intake Filter Replacement (2008, 2009, 2010, 2011, 2012, 2013) - iFixit Repair Guide
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Amazon.com: K&N Cold Air Intake Kit: Increase Acceleration & Engine Growl, Guaranteed to Increase Horsepower up to 18HP: Compatible 2.5L, H4, 2008-2014 SUBARU (Impreza, WRX STi, WRX STI, II, III), 69-8005TWR :
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OE Replacement for 2008-2016 Subaru Impreza Air Filter (2.5 GT / 2.5i / 2.5i Limited / 2.5i Premium / Base / I Sport / Limited / Outback Sport / Premium / Sport) - Walmart.com
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Amazon.com: Depointer Air Filter, Replacement Engine Air Cleaner Element, Suitable for subaru-Legacy outback impreza XV Crosstrek forester Levorg Tribeca Exiga, (16546AA090/A120) : Automotive
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HPS Cold Air Intake Kit CAI 2017-2022 Subaru Impreza 2.0L Non Turbo 827-684 - HPS Performance Products
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