These are plug and play clips designed to plug into the stock OBD2 Injector wiring on your OBD2 Honda/Acura. The other side plugs directly into EV1 Connector (OBD1) Injectors like the RC or Precision Injectors we carry along with some Fuel Injector Clinic Offerings
Price is for a set of (4) clips. If you need (6) select that from the drop-down menu.