Don't let your 03 - 04 Mustang Cobra's stock air meter rob you of horsepower any longer.  The stock meter is of insufficient size for all but the most lightly modified engines. Adding this 95mm unit from SLP not only increases output by up to 12 hp in stock applications, it also provides a proper foundation for future power-enhancing upgrades. Package includes meter, oversized high-flow air filter, and composite heat shield.