The most expensive part in this assembly is the Sensor,air Intake.
Parts such as the Air Cleaner Tubing: Chamber,breather, Clamp, Hot Air Duct, Clip B10,tube, Tube Breather are included in the Civic 1974 3dr1200 (ka) Air Cleaner Tubing parts fiche.
The most reasonably priced component used on the Civic 1974 3dr1200 (ka) Air Cleaner Tubing is the Screw,cross,4x20.