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Holley EFI Terminator X Injection System (87-93 5.0L Mustang w/ Factory TFI Distributor)Find parts that fit my vehicle

Item 473189
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$1,499.95 set

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      Product Information

      Features, Description, Q&A, Specs & Installation

      Features

      • Holley EFI Terminator X Injection System
      • Plug-and-Play EFI System for 1987 to 1993 5.0L Mustangs with Factory TFI Distributor
      • Includes ECU, Fox-Body-Specific Harnesses, TFI Adapter, MAT & CTS Sensors
      • Supports High-Impedance Injectors; Comes with EV1 Injector Harness
      • Integrated 1-Bar MAP Sensor; External MAP Sensor Support Included
      • Advanced Boost & Nitrous Controls, Custom Tables, and Safety Features
      • On-Board Diagnostic LEDs and Compact ECU with Touchscreen Setup
      • 3.5" LCD Handheld with Calibration Wizard, Data Logging & Custom Gauges
      • Bosch LSU 4.9 Wideband Sensor for Precise AFR Monitoring
      • Hard Installation
      • One-Year Limited Warranty
      • Fits 1987-1993 5.0L Mustang w/ Factory TFI Distributor

      Description

      Advanced Plug-and-Play EFI. The Holley EFI Terminator X Injection System is a complete electronic fuel injection upgrade for Fox-body Mustangs equipped with the 5.0L and factory TFI distributor. Offering modern tuning capability, it supports high-impedance injectors and provides advanced controls for boost, nitrous, and safety features while maintaining plug-and-play simplicity.

      Construction and Appearance. The system includes a compact ECU with onboard diagnostic LEDs, Fox-body-specific harnesses, and a TFI adapter for direct compatibility. It comes with MAT and CTS sensors, an integrated 1-bar MAP sensor with external sensor support, and a Bosch LSU 4.9 wideband O2 sensor for precise air-fuel ratio monitoring. A 3.5-inch LCD handheld offers calibration wizards, data logging, and customizable digital gauges.

      Installation. Installation is hard and requires advanced mechanical and electrical knowledge. Professional installation is recommended to ensure proper calibration, wiring, and setup for optimal results.

      Warranty. This EFI system is backed by a one-year limited warranty for quality and reliability.

      Application. This Holley EFI Terminator X Injection System fits 1987-1993 5.0L Mustang w/ factory TFI distributor.

      Holley EFI 550-937F

      CA Residents: WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov

      Installation & What's in the Box

      Installation Info

      Installation Time

      (approx) 4 Hours

      Difficulty Level:

      Mechanical expertise or professional installation required.

      Installation Guides

        No guide available for this part yet.

      What's in the Box

      • (1) Terminator X ECU With Mounting Bracket
      • (1) Engine Harness (Fox Body Specific)
      • (1) EV1 Injector Harness
      • (1) TFI Ignition Adapter
      • (1) Bosch Wideband Sensor (LSU 4.9)
      • (1) MAT Sensor
      • (1) CTS Sensor
      • (1) 3.5" LCD Handheld Controller

      Tech Specs

      Questions & Answers

      No questions about this product yet. Ask the First Question

      Will It Fit My Mustang

      • Cobra - 93
      • Cobra R - 93
      • GT - 87, 88, 89, 90, 91, 92, 93
      • LX - 87, 88, 89, 90, 91, 92, 93