Nissan RB PnP ECU Master Fits: RB20DET, RB25DET, RB26DET, SR20DET Connector: 76 PIN We offer a comprehensive range of OEM connectors for common engines and vehicles. These connectors allow direct connection to an OEM plug and further to ECUMASTER EMU / EMU CLASSIC, without the need for any wiring modifications. This facilitates a quick and easy installation of ECUMASTER EMU / EMU CLASSIC. Can the ECU Master Black be used with the PnP connectors as well? Yes, it is possible to use ECUMaster Black if you swap a few pin contacts in the connector. Pinout for ECU Master Classic can be found here Pinout for ECU Master Black can be found here