Dryflow Air Filter Aem. Dryflow Air Filters are washable synthetic air filters engineered for an best-fit combination of air flow, filtration, and performance. AEM Dryflow filters use an innovative high performance oil-free filtration material that allows easy cleaning, durable service, and excellent filtration. Built to increase horsepower and throttle response AEM Air Filters are cleanable and reusable for the life of your vehicle Captures up to 99% of harmful contaminants Outstanding performance even in dusty racing conditions Manufactured in the USA Does not require oil Will NOT void vehicle warranty Application: Subaru Forester 2.0L H4 Diesel Subaru Outback 2.0L H4 Diesel Subaru XV 1.6L H4 Gas Subaru XV 2.0L H4 Diesel Subaru XV Crosstrek 2.0L H4 Gas Subaru Impreza 1.6L H4 Gas Subaru WRX STI 2.5L H4 Gas Subaru Legacy IV 2.0L H4 Diesel Subaru Legacy IV 2.0L H4 Gas *By request/order.