Availability
Holley Terminator X 3.5 in. Handheld Controllers
2 Customer Reviews
Features:
* Laptop-free tuning changes to help optimize mileage, drivability, and performance
* Basic tuning options allow simple adjustments of Basic Fuel, Fuel Learn, Basic Idle, Spark, and more
* System tuning options allo
Features:
* Laptop-free tuning changes to help optimize mileage, drivability, and performance
* Basic tuning options allow simple adjustments of Basic Fuel, Fuel Learn, Basic Idle, Spark, and more
* System tuning options allow modifications to Outputs, Engine Setup, Ignition Setup
* Advanced tuning options allow fine tuning of Fuel, Closed Loop, Learn, and Idle (including IAC parameters and Idle Spark)
* Monitor a vast number of parameters in pre-configured Multi-Gauge and Monitor Screens, or customize your own
* Set up ECU datalogging, download datalogs to SD card, upload and download global folders via SD card, update ECU firmware, and adjust rev limiters 1 and 2
Showing In Stock Items. Show All 1 Items.
Fuel Injection System Components, Terminator X, Upgrade, 3.5 in. Touch Screen, Handheld Controller, Mounting Sleeve, Power Cord, Wire Harness, Each
Part Number: HLY-553-201
Estimated Ship Date: Monday 3/23/2026 if shipped by air
Estimated Ship Date: Monday 3/23/2026 if shipped by air
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