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These Holley EFI HP ECU and Harness Kits give you a huge assist in getting your custom EFI installation done. By coupling the incredible HP ECU along with the power, main, ignition, injection, and other required harnesses for these popular applications, you can move forward on your project with confidence.
Note: All are available with your choice of Bosch or NTK wideband O2 sensors. Choose the Bosch sensor for applications that will never use racing gasoline or experience excessively high turbo conditions. In those cases, choose NTK.