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New -10% Terminator X Max MPFI Kit for Ford Godzilla 7.3L Engine

Ford Godzilla 7.3L engine owners, your wait is over. Holley has announced their new engine-specific multi-point fuel injection kit for your amazing engine. Let's start by going over exactly what a "Terminator X" is and then we can get into the specifics of why this is hands-down the best choice for your 7.3L Godzilla Engine.

What's Terminator X?

Holley's Terminator X family of EFI Systems are standalone engine management systems that closely replicate some of Holley's most advanced engine management systems but at a much more budget-friendly price. This PDF gives a highly detailed comparison of the Terminator X and X Max to engines built using the Holley HP and Dominator ECUs. To summarize, Holley was able to leave out some features found to be less-necessary by the majority of users and, in doing do, slash the price of a full-featured EFI System by half.  If you're switching your carbureted engine to multi-point EFI or are swapping a fuel-injected engine into your ride and need to stay on a budget, this is the EFI system for you.

Here are some of the features that are included in each Terminator X kit:

  • *Requires hardware not included with Terminator X system to implement
  • **X Max Version Only

Different Terminator X EFI Systems For Different Applications

Yes, there are quite a few different Terminator X EFI System--nearly 100 with more on the way.  All Terminator X systems include either a Terminator X or Terminator X Max ECU. The Terminator X Max ECU provides connectivity for transmission control and drive-by-wire harnesses and is included only in those kits that require one or both of these features. Both ECUs include an on-board 1-BAR MAP sensor or you can add an external MAP sensor for boosted applications. On-Board Diagnostic LEDs display the status of ECU Power, Engine Run, Wideband Status, TPS Calibration, Crank Signal, and Cam Signal

In addition to the ECU the kit all Terminator X / X-Max systems include the following:

  • ECU Power Harness
  • Application-Specific Main Harness
  • 3.5-inch Touchscreen LCD Display with Setup Wizard app
  • Custom 4-input / 4-output harness pre-configured for two Electric Fans, A/C Kick, and A/C Shutdown
  • Bosch LSU 4.9 Wideband O2 Sensor

Unique To The Terminator X MPFI Kit for Ford Godzilla 7.3L Engine

Holley provides many features unique to the Ford Godzilla 7.3L Engine that make this EFI system a breeze to install and configure and powerful to operate.

  • Direct-fit connectors for factory sensors
  • Ignition harness for factory ignition coils
  • Godzilla Crank Sensor Module included, must be used in-line with factory crank sensor
  • Two Four-Channel Coil Driver Modules for Ford Ignition Coils
  • Main Harness includes OEM VVT and Oil pump connectors -- Control pre-configured in software
  • Drive-By-Wire harness for Ford Godzilla throttle body*
  • EV6 injector harness
  • *Drive-by-wire kits require the use of the specific OEM throttle bodies and throttle pedals: Throttle Body - JL3E-9F991-AA – Throttle Pedal - BR3Z-9F836-D. Other options are listed within instruction manual 199R12525

Your Choice of Coil Connectors!

Holley only offers their Terminator X MPFI Kit for Ford Godzilla 7.3L Engine with built-in connectors for the OE Ford Smart Coils. But a lot of folks are running this engine with FuelTech's IGN1A Smart Coils. To do that you've got three choices: Swap out the connectors yourself (painful!), buy the optional Holley EFI Godzilla Main Haress with FuelTech connectors (added expense!) or, make the smart choice: Just buy the your Terminator X Max kit for your 7.3L Ford from us and let us know you want to run FuelTech coils. We'll swap out the OE-style main harness and coil drivers for the main harness with the FuelTech connectors--at no additional cost!

What Else Will I Need?

Required:  EFI Fuel System with

  • EFI Fuel Pump (Many great options here)
  • Pre- and Post-Pump Filters
  • Fuel Pressure Regulator
  • Associated Hose, Hose Ends, Clamps, Adapters, Etc.


Not Sure? Review this product documentation before you buy!

Quickstart Manual
Holley Terminator X and X Max EFI Systems

Tuning Manual
Holley Terminator X and X Max EFI Systems

Kit-Specific Notes
Ford Godzilla 7.3L

Installation Instruction Manual
2018-2022 Ford Drive-By-Wire Throttle Body Harness

Boost ControlYes (Requires Additional Hardware)
DIS OutputsEight
FamilyTerminator X
Fueling StrategySpeed Density, Alpha-N, or Combination
Includes Power HarnessYes
Injector DriversEight High Impedance
Internal DataloggingNo. All datalogging done via external device (handheld, laptop, digital display.)
Nitrous ControlYes (Requires Additional Hardware)
Number of CylindersEight
User Configurable I/OYes
User-Selectable MAP StorageNo
Water-Methanol ControlNo
Displays And Controllers
Auto BrightnessNo
CAN Bus CapableYes (Specific to Holley ECUs Only)
Case/Bezel FinishBlack
ConfigurableMonitor dozens of pre-configured metrics provided by the ECU, including sensors, air/fuel ratio, switched outputs, drive-by-wire data, and more.
Data LoggingYes
Display TypeLCD
FunctionsSetup, Monitor, Tuning
Gauge/Display Size3.5 Inch Rectangular
Internal StorageYes (SD Card)
Harness TypePower Harness, Main Harness, Injector Sub-Harness, I/O Harness, Ignition Adapter. Transmission Harness (Transmission Control Versions Only), DBW Harness (DBW Versions Only)
Crank Timing
Sensor Harness IncludedDirect-Fit Connector to Factory Crank Timing Pickup
TypeECU-mounted 1 BAR MAP, Wideband O2
Also IncludedI/O Harness
ApplicationFord Godzilla 7.3L Engine
Emission Code3 - This part is legal for sale and use on Uncontrolled (Non-Emissions Controlled) Vehicles and Racing Use Only Vehicles.
Unit of SaleKit

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Terminator X Max MPFI Kit for Ford Godzilla 7.3L Engine

  • Views: 2650
  • Brand: Holley EFI
  • Product Code: 550-1431
  • Availability: In Stock
  • $1,666.61
  • $1,499.95

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