- The FuelTech FT550 PRO V8 Complete Harness is the best link between your FT550 or FT550LITE ECU and V8 engine. It comes pre-terminated to suit a V8 engine with all relays and fuses for a simple 3 wire battery hook up and ignition power. It has a 37 pin firewall connector to make installation an easy task and with the modular construction, adding individual coils is as easy as connecting add-on harnesses utilising the built in output connectors. Each connector has its own label and the connectors and harness insulation is heat, moisture and oil resistant.
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PRO550 V8 Complete Harness Manual PRO550 Connectors