The Terminator X MAX Engine Management System from Holley is one of the most advanced powertrain management systems that provide you with plug & play control, compatible with a range of domestic V8 engines. Gone are the days when you had to settle or a factory or substandard ECU. With Terminator X Max, you have a highly-efficient and intuitive system at your fingertips that let you take complete control.

The X MAX EMS series includes GM Transmission Control. It also has on-board LEDs to help you diagnose issues with the engine, ECU power, wideband, crank signal, and more by just a glance. It has four outputs and inputs each, suitable for a range of accessories and diagnosing various issues. Data-logging is integrated into the SD card so that you can use it for further diagnosis.

A free EFI tuning software is also included for complete control. Setting up this EMS is simple, and management with the included touchscreen is made easy. No separate laptop is required, thanks to the high-resolution touchscreen. It also has advanced tables, a 1-bar MAP sensor, and wire-throttle body control. With Holley's EMS systems, unleash your engine's potential and prepare for race-winning performance.

Holley, founded in Bradford, Pennsylvania in 1896, has become a well-established force in the automotive world. They have been undeniably the go-to company in the past 100 years for aftermarket performance fuel systems. They offer a vast range of products, ranging from performance fuel pumps, carburetors, to intake manifolds for various applications as well as engine dress-up products. Their dominance is unrivaled, powering almost every NASCAR Sprint Cup team and every NHRA Pro-Stock champion for 4 decades. They have partnered with other Holley companies such as Flowtech, NOS, Hooker, etc. and all products, whether partnered or single solution, consumers products of top quality and performance.