Key FeaturesManufactured in the USA using proprietary 4-step molding process to ensure the highest quality.Specially formulated sensor-safe oiled cotton filtration media traps particles as small as 5 microns.Up to 25% more air flow compared to the leading manufacturer.Washable and reusable, eliminates waste from single-use filters.Designed to meet or exceed OE specifications and covered by HPS's 10-year limited lifetime warranty.Installs in just minutes.HPS Performance Drop-In Air Filters are a direct replacement for your vehicle's engine air filter. HPS uses a low pressure injection molding process to produce the panel filter's frame, ensuring a high quality product that allows for up to 25% more airflow than the leading brand. The woven cotton filtration media is encased between durable stainless steel mesh to retain its rigid pleats. This filter is coated with a specially formulated synthetic oil that traps fine particles within the double-layered woven cotton media. It installs in just minutes using little to no tools, depending on the vehicle. HPS Performance Drop-In Air Filters should be serviced every 30,000 miles using the HPS Performance Air Filter Cleaning Kit to maintain optimal filtration and airflow. Manufactured using only high-quality materials, this HPS Performance Drop-In Air Filter is engineered to last and is covered under HPS's 10-year limited lifetime warranty.Vehicle Application2006-2007 Subaru B9 Tribeca 3.0L H62016-2017 Subaru Crosstrek 2.0L H42009-2018 Subaru Forester 2.5L H4 Non-Turbo2014-2018 Subaru Forester XT 2.0L H4 Turbo2011-2012 Subaru Forester XT 2.5L H4 Turbo2012-2016 Subaru Impreza 2.0L H42009-2010 Subaru Impreza 2.5 GT 2.5L H4 Turbo2008-2011 Subaru Impreza 2.5i 2.5L H4 Non-Turbo2008-2011 Subaru Impreza Outback Sport 2.5L H4 Non-Turbo2015-2016 Subaru Impreza WRX 2.5L H4 Turbo2008-2014 Subaru Impreza WRX STI 2.5L H4 Turbo2005-2019 Subaru Legacy 2.5L H4 Non-Turbo2010-2019 Subaru Legacy 3.6L H42009 Subaru Legacy 3.0L H42010-2012 Subaru Legacy 2.5GT 2.5L H4 Turbo2005-2009 Subaru Legacy GT 2.5L H4 Turbo2005-2009 Subaru Outback 3.0L H62010-2019 Subaru Outback 3.6L H62005-2019 Subaru Outback 2.5i 2.5L H4 Non-Turbo2005-2006 Subaru Outback XT 2.5L H4 Turbo2008-2014 Subaru Tribeca 3.6L H62015-2016 Subaru WRX 2.0L H4 Turbo2015-2017 Subaru WRX STI 2.5L H4 Turbo2013-2015 Subaru XV Crosstrek 2.0L H4, Excludes Hybrid