The FuelTech PRO600 Secondary Injector harness is designed as a true plug and play expansion to complement the PRO600 V8 harness. With this expansion harness the user can expand to a total of 16 fully sequential injectors with simple pre-terminated connections. The harness is fitted with a 24 position CPC firewall connection making adding a second set of injectors a breeze! The harness includes a single 30amp relay and fuse protection, two connections for peak and hold driver’s and is set up to suit EV1 style injectors. The PRO600 Secondary Injector harness has a label for each connector and the insulation is heat, moisture and oil resistant. For use with 16 injector applications EV1 Injector connector Plug n’ Play design compatible with PRO600 Harness Uses PRO600 Outputs Connector A (Blue Wires) Includes: 8 injector connectors, Fuse, Relay, Auxiliary power connector (power from battery), 12-way Connector for connection with ECU Peak and Hold Pro connector and CPC Connector for firewall Please contact us with any questions to confirm compatibility with your setup.