FT550 6 Cylinder Expansion B Harness by Fueltech The FuelTech FT450/FT550 6 Cylinder Universal A and B Harness were designed to be a universal fit for 6-cylinder engines. The A harness has all the components needed to easily install a 6-in-line or V6 engine. With a few modifications, this harness can fit many applications, saving time during the wiring process. The insulation and connectors are moisture, heat, and oil resistant. Features 6 EV1 injector connectors (12 when using FT550 and expansion B Harness) FuelTech Peak and Hold external driver ready (both A and B Harnesses FuelTech WB-O2 NANO ready (one) Intake air temperature sensor ready (GM style connector) Extra output connector for custom use Crank and Cam (Hall and VR) loose wires Benefits Engine Temperature (coolant) sensor ready Fuel and oil pressure sensor ready Applications Universal What’s In The Box? 1 – FT550 6 Cylinder Expansion B Harness Warranty Fueltech Standard 1-Year Limited Warranty