Impreza L Sport Wagon F4-2.2L SOHC (1999)
5. Disconnect connector from intake air temperature sensor.
6. Loosen clamp which connects air cleaner case to throttle body.
7. Disconnect hoses from air cleaner case.
8. Remove bolts which install air cleaner case to stays.
9. Remove air cleaner assembly.
10. Installation is in the reverse order of removal.