HP ECU AND HARNESS, MPFI, NTK

Name: HP ECU AND HARNESS, MPFI, NTK
Brand: Holley
SKU: H00E 550-604N
Price: 2869.95 USD
Availability: InStock

$3,228.95 $2,869.95 Save $359.00

SKU: H00E 550-604N

In Stock

Ships by Jun 8

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Non-Returnable Item

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Description

The Holley HP EFI ECU and Harness Kit (MPN: 550-604N) is a powerful, self-tuning engine management system designed for multi-port fuel injection (MPFI) applications. It includes an NTK wideband oxygen sensor for accurate air/fuel ratio monitoring and offers extensive tuning capabilities, suitable for a wide range of engine configurations.

Fitment

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Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.

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Specifications

Brand	Holley
Part Number	H00E 550-604N
Weight	11.01 lb

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Buy with Confidence

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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