For Ford Mustang SN95 3.8 Black Cold Air Intake Pipe+Heat Shield+Blue Filter System Appplication: 99-04 Ford Mustang 3.8L Intake Inlet Size: 3" Air Filter is Made of Micro Cotton Gauze, Washable and Reusable Heatshield to Block Radiant Engine Bay Heat for Improved Combustion Helps Engine to Draw in More and Colder Air Resulting in Better Throttle Response and Higher Explosive Horspower Output