Fitment: 2004-2008 F-150 5.4L V8 Benefits: T-304 aluminum w/polished Estimated Gain of 18.87 Horsepower Improved Power Throughout RPM Range Mandrel-Bent Aluminum Tubing Reduced Airflow Restriction Oversized, Oiled Cotton Gauze Air Filter Utilizes Factory Mounting Points Does Not Require Tune or Calibration All mount accessories are included.