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The FAST power adder harness kit gives the XFI ECU hardware to control multiple power adder outputs, including nitrous solenoids. It provides the pre-wired connections to manage solenoid activation and lets the ECU govern staging, fuel and timing control for power-adder systems. Use the kit with XFI tuning to integrate nitrous or other adders into your engine management strategy with proper wiring and ECU control.
FAST Harness FAST Power Adder Kit
