Elite 2500 GM GEN III LS1 & LS6 (GEN IV LS2/3 DBW Retrofit Ready) Terminated Harness Kit WBC1/2 CAN O2 Wideband Controller ready (Controller and sensor(s) not included) Suits factory EV1 injector connectors - Includes ECU, Engine Harness, & Fuse Block Kit. Pre-wired to connect directly to OEM 7 Pin Coil Harness Connector (Ignition coils and harnesses are NOT included)