Unlock the full potential of your Terminator X and Terminator X Max ECU with our free PC software download. Take control of your Fuel Tables, Timing Tables, Idle Control, DBW Control, Boost and …

Introducing the Terminator X Software from Holley EFI. Allowing you full tuning access to the Terminator X and Terminator X MAX ECU. This free software provides access to all of the base tables and maps …

Nov 12, 2025 · Built specifically for use with Holley’s Terminator X EFI systems, this app gives you advanced tuning capabilities in a streamlined, mobile-friendly interface. Perfect for racers, tuners, and...

Nov 22, 2024 · Over the years, Holley has released numerous updates to their software, but older versions often become difficult to find as time goes on. This section is dedicated to preserving and …

May 12, 2023 · Holley has released the latest edition of its Terminator X EFI software, which adds a host of new features and functions.

Jul 31, 2023 · Terminator X V3 software is here! The new release expands hardware support and adds a variety of popular software options.

We start with the basics of downloading/installing the Holley Terminator X software and walk you through each training lesson in very specific order so you can learn most efficiently.

Terminator X V2 Revision Log - contains updated V1 information, V2 support for GM Gen V LT DI/VVT, and GEN III HEMI VVT and 46RE Transmission Control. Also includes the V1 to V2 calibration …

Designed for Terminator X V3 Build 110 and later, the Time-Based Traction Management is intended for drag racing, standing mile events, or other racing that starts from a stop. Traction management is …

The latest Terminator X ECU Firmware, Terminator X Handheld Firmware and Terminator X PC Software is available for download at www.Holley.com. The ECU and Handheld firmware are …