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Ignitions and Electrical› Computers, Chips, Modules and Programmers

Holley

Dominator EFI Kit - Universal

$3,543.95 $3,149.95 Save $394.00

SKU: H00E 550-652

In Stock
In Stock
Ships by Jun 7
Free Shipping
Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Description

The Holley Dominator® EFI Vehicle Management System (MPN 550-652) is designed for non-emissions street and racing engine applications. It offers extensive control capabilities, including transmission control, drive-by-wire, and dual wideband oxygen sensors. This system can manage various power adders and features individual cylinder fuel and spark control, self-tuning fuel table strategies, and multiple data visualization tools.

Fitment

Fitment Guaranteed

Don’t gamble
on fit.

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

Available on iOS & Android

Specifications

BrandHolley
Part NumberH00E 550-652
Weight14.93 lb

Videos

Holley EFI ECU Mounting & Wiring

Holley EFI ECU Mounting & Wiring
Holley Dominator EFI Overview - Why it's the best LS EFI standalone - Features, Hardware, Benefits

Holley Dominator EFI Overview - Why it's the best LS EFI standalone - Features, Hardware, Benefits
New Holley efi install advice

New Holley efi install advice
Holley EFI’s CAN Input/Output Module Allows You To Expand Your Current ECU’s Capabilities

Holley EFI’s CAN Input/Output Module Allows You To Expand Your Current ECU’s Capabilities
How to: Holley Dominator Install on LS and setup with Holley V5 Software

How to: Holley Dominator Install on LS and setup with Holley V5 Software

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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