Cobb SF Intake REPLACEMENT FILTER - Subaru WRX / STi 2002-2014 (+Multiple Fitments)The filter element that originally came with your SF Intake is cleanable and can be reused for the life of your car. However, should your filter element become damaged, this is the replacement part. WHY? Filter for all Subaru and MS3 SF Intake 712100,715100,724100,771500 FEATURES Subaru and Mazda SF Intake Replacement Filter SF Intake Replacement Filter Washable Reusable Cotton Woven Media Increased Air Flow While Maintaining Filtering Efficiency Pre