To be clear: this is to be used with a EV6/EV14 style injector, and an OEM 90s Toyota harness connection. If you are unsure if this will work with your OEM harness, it's better to buy connectors and pins and wire directly to the OEM harness.
NOTE: OEM Harness connections must be in very good condition to use an adapter instead of repinning to a new connector.
Adapters sold individually and subject to availability. Brand may be Injector Dynamics, or Deatschwerks, or Fuel Injector Connection depending on availability.