Classic Shaker Styling. Improve the performance and overall appearance of your S197 GT Mustang with a CDC Shaker System. The retro, classic muscle car look of this Shaker system complements the lines of your Mustang while improving airflow for more power. Improves Airflow. This CDC Shaker System includes all the duct work necessary to make it fully functional. The Shaker System boosts overall power of the Mustang by providing a direct flow of cool air directly into your stock air box.Superior Design. This system uses your factory hood which has a factory stamping in the hood inner, which accommodates the shaker system installation process, while maintaining the integrity of the hood. In addition CDC has engineered water management systems within the shaker ductwork. No Tune Required. This shaker system has been designed to use the factory air box so a tune isn't necessary, saving you time and money.Complete Kit. The Shaker System includes an engine dress up cover, cast aluminum scoop, and all necessary hardware, instructions and templates. Reuses the stock factory GT hood - cutting is required.Application. This CDC Shaker Hood System is designed to fit 2005-2009 Ford Mustang GT models.