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Holley

TERMINATOR X MPFI, GEN3 HEMI, EARLY, EV6

$2,193.95 $2,078.64 Save $115.31

SKU: H00E 550-1223

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INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Description

Part #: 550-1223

Introducing Terminator for Chrysler GEN III HEMI engines from 2003-2013+ such as the 5.7L, 6.1L and 6.4L engines. (Non-VVT only)

Features:

  • Plug and play engine control (for Chrysler GEN III HEMI control from 2003-2013+ Engines such as the 5.7L, 6.1L and 6.4L engines. (Non-VVT only)
  • Plug and Play compatible with Holley EFI accessories - Analog gauges, shift lights, modules, and both 6.86" and 12.3" Pro Dash
  • EV1 or EV6 injector harness included (depending on your injector configuration)
  • High Impedance Injector drivers power Holley EFI and most stock injectors -Injector support chart found in instructions (will not support low impedance injectors)
  • Included Bosch LSU 4.9 wideband O2 sensors for accurate readings and precise tuning control
  • Built in 1bar MAP (manifold absolute pressure) sensor included - For Boosted applications - internal MAP sensor can be disabled and utilize external MAP sensor harness (kit includes a terminated connector for seamless installation)
  • Vacuum hose adapters included - (1/8", ┬╝", and 3/16" sizes)
  • 4 inputs - 12v, Ground, 5v, and frequency for items like pressure sensors, activation triggers, nitrous activation, or trans brake
  • Boost Control - boost vs. time, boost vs. gear, boost vs. RPM, boost vs. speed, and boost safeties
  • Nitrous Control - channels for wet or dry, progressive or non-progressive, rich/lean safeties, and target closed loop AFR (Air/Fuel Ratio)
  • Advanced Tables - ( 4x 1D tables, 1x 1D gear table, 4x 2D table, and 1x 2D gear tables) for nearly unlimited table configuration options
  • On-board diagnostic LEDS - ECU power, engine run, TPS calibration, cam signal, and more! Identify critical engine parameters at a glance
  • 3.5" touchscreen handheld included - Internal data-logging, custom gauge display, and calibration wizard allow quick building bases tunes for any Domestic V8 engine
  • Compact ECU (Engine Control Unit) - At only 7.45" x 4.1" x 1.66" the compact packaging allows mounting virtually anywhere (XMAX ECU = 9.6" x 4.1" x 1.66"). REMINDER: diagnostic LED's must face up!
  • FREE EFI Tuning software - For compete control of your Terminator X power plant

2003-2006 GEN III HEMI engines with EV6 injectors

MIA's Description

The Holley 550-1223 Terminator X HEMI Gen III Kit is a comprehensive engine management solution designed for Chrysler Gen III HEMI engines from 2003 to 2013+ (5.7L, 6.1L, and 6.4L variants without variable valve timing, or non-VVT). This plug-and-play system provides enthusiasts and professional tuners with a powerful platform to optimize fuel delivery, ignition timing, and boost control for both naturally aspirated and boosted applications.

Fitment

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Specifications

BrandHolley
Part NumberH00E 550-1223
Weight10.75 lb

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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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