Terminator

Terminator

Find The Right Terminator EFI System for You!

The video below lets you take a quick guided tour of the Holley Terminator systems that are available from EFI System Pro. Or, scroll further down and find an index of the different Terminator systems and a list of frequently asked questions about these amazing EFI systems. Enjoy!

Index of Terminator Systems

Holley has rather broadly applied the Terminator title to a broad range of different EFI Systems so our goal here is to try to break this down in a way that makes sense. Let us know how you think we did!  For a more detailed explanation of the differences between the systems listed here, read our Terminator FAQ, below.

GM LS Engines

Ford Engines

Dodge Engines

Universal Engine Applications*

  • *4, 6, or 8 Cylinder Even-Fire Four Stroke Engine

Terminator Frequently Asked Questions

Holley's decision to classify a broad range of their EFI systems under the Terminator name does invite confusion.  We try to offer some answers!

Q: What is the difference between Terminator and Terminator X?

A: The EFI Systems that fall under the name "Terminator" all include either one of Holley's HP or Dominator ECUs.  The EFI Systems that fall under the name "Terminator X" include either the Terminator X or Terminator X Max ECU.  This PDF will show you the detailed differences between all four ECU's.

Q: What kind of EFI systems are included in Terminator X?

A: All of the Terminator X EFI Systems come with the harnesses and connectors intended to run a multi-point fuel injection (MPFI--one injector per cylinder) on a specific engine.  You can buy these for GM LS and Truck engines, Ford Coyote, Modular, and other V8 engines, as well as for universal applications.

Q: What kind of EFI systems are included in Terminator?

A: This question is a bit more complex to answer.  Terminator LS MPFI is the system that birthed the idea of Terminator X and is essentially a Terminator X system but with the HP or Dominator ECU.   (The Dominator ECU is included in those systems that include transmission or drive-by-wire control.)

However, there is more to the Terminator family.  Terminator TBI and Terminator Stealth TBI systems are throttle-body injection systems, meaning the fuel injectors are included in the carburetor-looking throttle body that sits on a 4150 carburetor intake manifold.  The Terminator Stealth TBI differs from the Terminator TBI in that the throttle body itself offers a "stealthy" looking throttle body that resembles a Holley Double-Pumper Carburetor.

Then, just because they could, Holley offered the Terminator LS TBI, which is a throttle-body based EFI System much like the Terminator TBI but is specifically for LS engines.

Q: Who should consider buying a Terminator X EFI System?

A: This is a GREAT choice for someone who is swapping one of these newer engines into an older chassis, or who is upgrading a carbureted engine to MPFI and needs to stay within a budget.  You'll give up some features that are available in a EFI System that uses one of the HP or Dominator ECUs but mostly these are features that only appeal to quite high-end users. Again, consult this chart for details.

Q: Which Terminator / Terminator X EFI System is right for me?

A: You may have looked in the list above and realized that there are more than one choice that could apply to your situation.  Or the sight of so many choices may simply be making your head swim.  No worries--that's why we're here!  Contact Us and let us know what you're trying to accomplish and we'll be glad to walk you though the options and help you make the best choice.

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Dual Terminator Throttle Body Injection System

We offer this complete dual Terminator kit because Holley does not.  They do offer the various ..

$3,696.64 $3,326.98

Terminator EFI 2x4 Upgrade Kit

Do you already have one of Holley's Terminator EFI Systems and want to add a second throttle body fo..

$1,346.70 $1,212.03

Terminator Universal 4BBL TBI Systems

Terminator Throttle Body Injection (TBI) EFI Systems were Holley's original 4150-carburetor replacem..

$2,487.95 $2,238.95

Terminator Stealth Universal 4BBL TBI Systems

Terminator Throttle Body Injection (TBI) EFI Systems were Holley's original 4150-carburetor replacem..

$2,415.95 $2,173.95

Terminator X MPFI Kit for Dodge Gen 3 Hemi Engine

What's Terminator X?Holley's Terminator X family of EFI Systems are standalone engine management s..

$1,458.95 $1,312.95

Terminator X MPFI Kit for Ford Coyote Engine 2011-2012

What's Terminator X?Holley's Terminator X family of EFI Systems are standalone engine management s..

$2,333.95 $2,099.95

Terminator X MPFI Kit for Ford Coyote Engine 2013-2015

What's Terminator X?Holley's Terminator X family of EFI Systems are standalone engine management s..

$2,333.95 $2,099.95

Terminator X MPFI Kit for Ford Coyote Engine 2015.5-2017

What's Terminator X?Holley's Terminator X family of EFI Systems are standalone engine management s..

$2,333.95 $2,099.95

Terminator X MPFI Kit for Ford Modular 4.6 & 5.4 Engines

What's Terminator X?Holley's Terminator X family of EFI Systems are standalone engine management s..

$1,458.95 $1,312.95

Terminator X MPFI Kit for Ford V8 302, Windsor & Big Block Engines

What's Terminator X?Holley's Terminator X family of EFI Systems are standalone engine management s..

$1,111.95 $999.95

Terminator X MPFI Kit for GM 4.8, 5.3, and 6.0 Truck Engines 97-07

What's Terminator X?Holley's Terminator X family of EFI Systems are standalone engine management s..

$1,111.95 $999.95

Terminator X MPFI Kit for GM LS1 & LS6 Engines

What's Terminator X?Holley's Terminator X family of EFI Systems are standalone engine management s..

$1,111.95 $999.95

Terminator X MPFI Kit for GM LS2/3 and 4.8, 5.3, 6.0 Truck Engines 07+

What's Terminator X?Holley's Terminator X family of EFI Systems are standalone engine management s..

$1,111.95 $999.95

Terminator X MPFI Kit for Universal Applications

What's Terminator X?Holley's Terminator X family of EFI Systems are standalone engine management s..

$1,111.95 $999.95

Terminator LS Multi-Point Fuel Injection System

Get all the great features of Terminator self-tuning EFI in a plug-and-play system for GM’s popular ..

$2,327.95 $2,094.95

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