Amazon.com: K&N Engine Air Filter: Reusable, Clean Every 75,000 Miles, Washable, Replacement Car Air Filter: Compatible with 2016-2019 Subaru H4 1.6/2.0/2.4 L (Ascent, Crosstrek, Forester, Impreza, XV), 33-5064 : Automotive
Amazon.com: K&N Cold Air Intake Kit: Increase Acceleration & Engine Growl, Guaranteed to Increase Horsepower up to 18HP: Compatible with 2.5L, H4, 2004-2006 SUBARU (Forester Turbo), 69-8002TS : Automotive