USCAR to Bosch Adaptor is perfect for most of the injectors in the Xspurt range. This is what you will need if you are using Xspurt 525, 725 or 1000cc injectors and your original wiring harness has Denso style connectors. One end goes on the injector and the wiring harness plugs directly onto the back. No need to cut any wires and very tidy.