Holley EFI Kit Terminator X Max For Late Coils Ford Coyote Engine 2015.5-2017
Highlights
- Custom Performance Tuning
- Plug-And-Play Application
- On-Board Engine Monitor
- Holley Accessory Compatible
Holley Terminator X Max EFI Kit for 2015.5, 2016, and 2017 Ford Coyote Engines with Late-Style Coyote Ignition Coils.
The Holley Terminator X Max EFI Kit is perfect for your 2015.5-2017 Coyote engine-swapped vehicle and Late-Style Coyote Ignition Coils. With this EFI Kit, you’ll be able to drastically upgrade the performance of your engine. With the included customizable 3.5” touchscreen handheld, you’ll be able to quickly swap and build base tunes to adjust the parameters of your ride for your preferences. This EFI Kit comes with free EFI tuning software that gives you complete control of your Terminator X Max power plant and can safely power EV1 and EV6 injectors.
Features & Benefits:
- Plug-and-Play Engine Control
- Compatible with Holley EFI Accessories
- High Impedance Injector Drivers Power Most LS & EFI Injectors
- Accurate Readings and Precise Tuning Control with Bosch LSU 4.9 Wideband O2 Sensors
- Four Input Options for Add-Ons: 12V, Ground, 5V, and Frequency
- Multiple Boost control Modes: Time, Gear, RPM, Speed, and Safeties
- Progressive Nitrous Control: Single-Channel Wet or Dry
- Non-Progressive Nitrous Control: Rich/Lean Safeties and Target Closed Loop AFR
- Nearly Unlimited Table Configuration Options
- On-Board Diagnostic LEDS
- Identify Critical Engine Parameters at a Glance
- Internal Data-Logging, Custom Gauge Display, and Calibration Wizard
- Quick Build Base tunes for any Domestic V8 Engine
- Compact ECU Mounts Virtually Anywhere
- Free EFI Tuning Software for Complete Control of Terminator X Power Plant
With the Holley Terminator X Max, you can take control of multiple boost control modes as well as progressive and non-progressive nitrous controls. Exploring and customizing your engine’s power parameters is easy with the EFI Kit software, which is loaded with various advanced tables to allow you to explore and even customize tables to your preference with laptop access. With the available plug-and-play install accessories, you can utilize Holley analog-style gauges, shift lights, and other available modules. Four Inputs and four outputs allow for fans, sensors, and more.
Kit Includes:
- 3.5” Touchscreen Handheld
- Terminator X Max ECU
- EV1 or EV6 Injector Harness (Depending on Injector Configuration)
- Bosch LSU 4.9 Wideband O2 Sensors
- Built In 1 Bar MAP Sensor
- Vacuum Hose Adapters: 1/8”, 1/4", 3/16”
Vehicle Fitment:
- 1965-2017 Mustang
- 1966-1977 Bronco
- 1948-1979 F-100
Additional Notes:
- For Boosted Applications, Internal MAP Sensor Can Be Disabled and Utilize External Map Sensor Harness (Kit Includes a Terminated Connector for Seamless Installation)
- Advanced Tables: 4x1D Tables, 1x 1D Gear Table, 4x 2D Tables, and 1x 2D Gear Tables
- ECU Diagnostic LEDs Must Face Up
California Residents: Proposition 65 Warning
Related Categories: Mustang Parts, Mustang Electrical & Wiring, Mustang EFI Engine & Injector Harnesses, Mustang Engine, Ford Bronco Parts
Only for use on pre-pollution controlled vehicles: This product can be used on vehicles that were manufactured before emissions control regulations were imposed. Pre-pollution vehicles are defined as:
- 1965 and older U.S. manufactured California certified vehicles
- 1967 and older U.S. manufactured federally certified vehicles
Installation Difficulty

Intermediate skill is required for this installation.
Installation Instructions
Vehicle Fitment
This product will fit the following Bronco years:
This product will fit the following F-100 years:
- 1948,
- 1949,
- 1950,
- 1951,
- 1952,
- 1953,
- 1954,
- 1955,
- 1956,
- 1957,
- 1958,
- 1959,
- 1960,
- 1961,
- 1962,
- 1963,
- 1964,
- 1965,
- 1966,
- 1967,
- 1968,
- 1969,
- 1970,
- 1971,
- 1972,
- 1973,
- 1974,
- 1975,
- 1976,
- 1977,
- 1978,
- 1979,
This product will fit the following Mustang years:










