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HCR Innovations Main Engine Harness

New HCR Main Engine Harness for Holley!

Now available for Pre-Order!

Check out our new Plug and Play Holley Efi harness kit, These are now available for sale as a Pre-Order!
HCR Innovations will be stocking these harnesses and they will be available through our Dealer Network as well.
If you do a bunch of Holley EFI installs and are interested in an American made, high-quality engine harness that won’t have you fighting thru little problems, this is the harness you’re looking for!  Watch the videos to learn all about them!

New HCR Innovations Plug n’ Play Holley EFI Harness for Dominator, Terminator X, Terminator X Max & HP ECUs


HCR Innovations Harness Compared to Others…