injector plug with High Quality Terminals and high quality boot https://www.efihardware.com/products/1501/injector-plug-with-Gold-Plated-Terminals-and-high-quality-boot
This Injector Connector is specifically designed to suit your injectors with the EV(X) "Square" style injector connectors with the top-center key.
This Connector is supplied with Pins and High Quality Rubber Boot.
Also fit one have of the early wide band sensor harness.