Suits: Factory EV1 injector connectors and common US style Delco/Bosch GM alternator connector. Includes: Engine Harness, & Three Circuit Fuse Block. Notes: Please confirm your alternator connector (further information available in the product quick start guide) and order an alternator adaptor if required. (HT-040090 or HT-040090) Pre-wired to connect directly to OEM 7 Pin Coil Harness Connector (Ignition coils and harnesses are NOT included, Please order 8 x HT-020102 and/or HT-045657 if required) E950 ECU Does not support the factory GM idle speed stepper motor control.