Air Cleaner Element: Removal

Disconnect the ground cable from the battery.
Disconnect the connector from mass air flow and intake air temperature sensor.

Fig 1: Locating Mass Air Flow And Intake Air Temperature Sensor
Courtesy of SUBARU OF AMERICA, INC.
Loosen the clamp (A) which connect the air cleaner case (rear) to intake duct.
Remove the clip (B) on the upper side of air cleaner case.

Fig 2: Identifying Air Cleaner Case (Rear) Clip And Clamp
Courtesy of SUBARU OF AMERICA, INC.
Pull the air cleaner case (rear) backward of the vehicle, and remove the air cleaner element.

Fig 3: Pulling Air Cleaner Case (Rear)
Courtesy of SUBARU OF AMERICA, INC.