Get your S197 Mustang running better, cleaner, and faster with a performance 2005-2009 Mustang air filter. These K&N filters are a direct replacement for OEM filters and are washable/reusable. Not only do they allow for easier air intake, they improve horsepower and acceleration. Pick one up today along with a recharger/cleaner kit to keep your new air filter properly maintained. These S197 Mustang air filters fit 2005, 2006, 2007, 2008, and 2009 Mustangs.