4.3 · 3 reviews
SKU: 550-1425

EFI Terminator X Max - 2013+ Gen III Hemi

$2,300.00
FREE delivery
Description

ABOUT THIS PRODUCT

Terminator X features real-time fuel learn, high impedance injector drivers, an integrated 1bar MAP sensor, and 4 programmable inputs and outputs. The inputs and outputs are ideal for electric fans, boost control solenoids, progressive nitrous control, and much more.

Product Features:
  • Plug and play Chrysler GEN III Hemi control - 2003-2006 Engines such as the 5.7L, 6.1L and 6.4L engines utilizing the factory DBW (Drive by Wire) throttle body. (Non-VVT only)
  • Plug and play compatible with multiple Holley EFI accessories including our gauges, shift lights, various modules, and digital and pro dashes (Holley P/N's 553-106, 553-111, and 553-112)
  • EV6 (USCAR) injector harness included
  • 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", 1/4", 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. REMINDER: diagnostic LED's must face up!
  • Free EFI Tuning Software for complete control of your Terminator X power plant
Specifications
Brand
Holley EFI (770)
SKU
550-1425
Product type
Automotive
Guides & Resources
User Guide
Returns Policy
Shipping Information

Free shipping on all orders. Most items ship next business day after your order is placed.

Returns Policy

Returns are accepted when the product is in its original, unopened container. Contact us if you have questions about your order.

View full returns policy

Customer Reviews

4.3

Based on 3 reviews

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C
Chris W. Verified Buyer
07/05/2025

Highly recommend

Good experience overall from checkout to delivery.

J
Jordan L. Verified Buyer
04/15/2025

Very happy with this

Packaging was secure and the item was in perfect condition.

E
Emma S. Verified Buyer
12/14/2025

Exactly what I needed

Easy to order and arrived quickly. Product matched the listing and works great.

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