K&N Dyno Results: +56.96 Horsepower Increase
Fits The Following Models: 2007-2009 Ford Mustang GT500 Shelby
50-State Legal: This air filter meets the California Air Resource Board (CARB) regulations, making this modification street legal and ensures it is allowed for emissions testing. The CARB # is D-269-37.
Installation Note: Included in this kit are detailed instructions for a relatively quick and easy installation (takes approximately an hour using standard tools).