New -10% Terminator X MPFI Kit for Dodge Gen 3 Hemi 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 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:

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 the Terminator X ECU. This ECU includes 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 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 Dodge Gen 3 Hemi Engine

Holley provides many features unique to the Dodge Gen 3 Hemi 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
  • Two Four-Channel Coil Driver Modules for factory Ignition Coils
  • Choose from EV1 or EV6 injector harness

Choose From Four Different Versions of the Terminator X MPFI Kit for Dodge Gen 3 Hemi Engine

Part NumberManuf.EngineECUInjector
Harness
Transmission
Control
Drive-By-Wire
Control
550-1222DodgeGen3 Hemi Engine 03-06XEV1NoNo
550-1224DodgeGen3 Hemi Engine 03-06XEV6NoNo
550-1223DodgeGen3 Hemi Engine 07-13XEV1NoNo
550-1225DodgeGen3 Hemi Engine 07-13XEV6NoNo

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.

Recommended:

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

ECU
Boost ControlYes (Requires Additional Hardware)
DIS OutputsEight
FamilyTerminator X
Fueling StrategySpeed Density, Alpha-N, or Combination
Includes Power HarnessYes
Injector DriversEight High Impedance
Internal Datalogging4GB
Nitrous ControlYes (Requires Additional Hardware)
Number of CylindersEight
User Configurable I/OYes
User-Selectable MAP StorageNo
Water-Methanol ControlYes (Requires Additional Hardware)
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, and more.
Data LoggingYes
Display TypeLCD
FunctionsSetup, Monitor, Tuning
Gauge/Display Size3.5 Inch Rectangular
Internal StorageYes (SD Card)
TouchscreenYes
Harnesses
Harness TypePower Harness, Main Harness, TBI Injector Sub-Harness, I/O Harness, Ignition Adapter
TerminatedYes
Crank Timing
Sensor Harness IncludedDirect-Fit Connector to Factory Crank Timing Pickup
Sensors
TypeECU-mounted 1 BAR MAP, Wideband O2
General
Also IncludedI/O Harness
ApplicationDodge Gen 3 Hemi Engine 03-06 or Dodge Gen 3 Hemi Engine 07-13+
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 MPFI Kit for Dodge Gen 3 Hemi Engine

  • Views: 111
  • Brand: Holley
  • Product Code: 550-1222 | 550-1223 | 550-1224 | 550-1225
  • Availability: In Stock
  • $1,458.95
  • $1,312.95

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