Impreza RS Coupe AWD F4-2.5L SOHC (1999)
3. Remove air intake duct as a unit.
4. Remove resonator chamber.
3. Remove air cleaner upper case and air cleaner element. (Except 2200 cc California SPEC. vehicle)
1. Disconnect mass air flow sensor connector.
2. Remove two clips securing air cleaner upper cover.
3. Loosen the clamp screw and separate air cleaner upper cover from air intake duct.
4. Remove air cleaner element.
