On this parts fiche the Clamp D 12.5 Tube is the most specified component.
The lowest price component in this Breather Chamber parts-list fiche is the Bolt,flange,6x14.
Parts such as the Breather Chamber: Tube,brthr, Clamp,d13.8 Tube, Bolt,flange,6x14, Joint,brthr Chbr are included in the Civic 1994 (r) 2dr Ex (ka,kl) Breather Chamber parts fiche.