Updated Apr 15, 2026 · v1.0.10
Unlock next-level tuning with the Holley Terminator X EFI Android app
UNLOCK THE NEXT LEVEL OF TUNING CONTROL FOR YOUR VEHICLE with the Holley Terminator X EFI mobile app — the ultimate companion for performance tuning right from your Android device. Take control of your engine’s performance with 250+ CUSTOMIZABLE PARAMETERS FOR PRECISE TUNING. Designed for enthusiasts and professionals alike, the Holley Terminator X EFI app lets you FINE TUNE ENGINE PARAMETERS FOR MAXIMUM PERFORMANCE — all from the convenience of your mobile device. Key Features: · Six pre-defined real-time monitoring screens for instant access to vital engine data · Intuitive setup wizard helps you easily create a powerful base tune in minutes · View real-time gauges on screen at a glance – no laptop required · Effortlessly create, manage, and share your tuning files with others · Record and share datalogs to review your performance anytime, anywhere · Simple, step-by-step Throttle Position Sensor (TPS) setup for accurate control 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 performance enthusiasts — take your tuning to the next level and keep your engine dialed in with Holley. App Requires the Holley Bluetooth Module to connect to the Terminator X ECU.
1 year on Google Play
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