Holley HP EFI ECU Kit includes ECU, harness, communication cable, software, USCAR (EV6 Style) injector connectors, and NTK wideband O2 sensor, designed to be used with GM LS2/LS3/LS7 engines with factory GM coils and a 58 tooth crank sensor

550-603N HP ECU Kit GM LS2/LS3 Engines W/58x Crank

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