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TERMINATOR X EFI
Take control of your engine with Terminator X! Don't settle for a factory ECU with a cumbersome tuning interface when you can have complete control of your engine, self-learning fuel strategies and the proven, race-winning technology of Holley EFI at a budget-friendly price! Terminator X features real-time fuel learn, high impedance injector drivers, an integrated 1bar MAP sensor, and 4 programmable inputs and outputs. The inputs and outputs are ideal for electric fans, boost control solenoids, progressive nitrous control, and much more. Terminator X comes fully loaded with base maps for common V8 engine combinations to get you out of the garage and on the road/track fast. The 3.5" touch screen LCD handheld contains an easy to use calibration wizard as well as tuning and gauge display functions. Also included is Holley EFI's industry-leading, easy to use software suite that allows full laptop access for advanced users. Whether you are building a budget beater or a boosted race car, Terminator X has the features and technology you need at a price that won't break the bank!
Browse Terminator X EFI Kits Products
Description: HOLLEY EFI TERMINATOR X MAX - GEN III 4.8/5.3/6.0 GM TRUCK ENGINES
Item #: HOL/550-930T
Condition:
New
Limited Supply: Only 0 Left!
Estimated Ship Date: 8/17/2023
Price: $1,614.95
Description: HOLLEY EFI TERMINATOR X MAX - GEN III 4.8/5.3/6.0 GM TRUCK ENGINES
Item #: HOL/550-917
Condition:
New
Estimated Ship Date: 8/17/2023
Price: $1,666.95
Description: HOLLEY EFI TERMINATOR X MAX - GEN III 4.8/5.3/6.0 GM TRUCK ENGINES
Item #: HOL/550-917T
Condition:
New
Estimated Ship Date: 8/17/2023
Price: $1,614.95
Description: HOLLEY EFI TERMINATOR X MAX - GEN III 4.8/5.3/6.0 GM TRUCK ENGINES
Item #: HOL/550-927
Condition:
New
Estimated Ship Date: 8/17/2023
Price: $1,875.95
Description: HOLLEY EFI TERMINATOR X MAX - GEN III 4.8/5.3/6.0 GM TRUCK ENGINES
Item #: HOL/550-927T
Condition:
New
Limited Supply: Only 0 Left!
Estimated Ship Date: 8/17/2023
Price: $1,822.95
Description: HOLLEY EFI TERMINATOR X MAX - GEN III 4.8/5.3/6.0 GM TRUCK ENGINES
Item #: HOL/550-930
Condition:
New
Estimated Ship Date: 8/17/2023
Price: $1,666.95
Description: HOLLEY EFI TERMINATOR X MAX - GEN IV 4.8/5.3/6.0 GM TRUCK ENGINES AND LS2/LS3
Item #: HOL/550-931
Condition:
New
Estimated Ship Date: 8/17/2023
Price: $1,666.95
Description: HOLLEY EFI TERMINATOR X MAX - GEN IV 4.8/5.3/6.0 GM TRUCK ENGINES AND LS2/LS3
Item #: HOL/550-931T
Condition:
New
Estimated Ship Date: 8/17/2023
Price: $1,614.95
Description: HOLLEY EFI TERMINATOR X MAX - GEN IV 4.8/5.3/6.0 GM TRUCK ENGINES AND LS2/LS3
Item #: HOL/550-933
Condition:
New
Estimated Ship Date: 8/17/2023
Price: $1,666.95
Description: HOLLEY EFI TERMINATOR X MAX - GEN IV 4.8/5.3/6.0 GM TRUCK ENGINES AND LS2/LS3
Item #: HOL/550-933T
Condition:
New
Estimated Ship Date: 8/17/2023
Price: $1,614.95
Description: HOLLEY EFI TERMINATOR X MAX - GEN IV 4.8/5.3/6.0 GM TRUCK ENGINES AND LS2/LS3
Item #: HOL/550-918
Condition:
New
Estimated Ship Date: 8/17/2023
Price: $1,666.95
Description: HOLLEY EFI TERMINATOR X MAX - GEN IV 4.8/5.3/6.0 GM TRUCK ENGINES AND LS2/LS3
Item #: HOL/550-918T
Condition:
New
Estimated Ship Date: 8/17/2023
Price: $1,614.95
Description: HOLLEY EFI TERMINATOR X MAX - GEN IV 4.8/5.3/6.0 GM TRUCK ENGINES AND LS2/LS3
Item #: HOL/550-920
Condition:
New
Estimated Ship Date: 8/17/2023
Price: $1,666.95
Description: HOLLEY EFI TERMINATOR X MAX - GEN IV 4.8/5.3/6.0 GM TRUCK ENGINES AND LS2/LS3
Item #: HOL/550-920T
Condition:
New
Estimated Ship Date: 8/17/2023
Price: $1,614.95
Description: HOLLEY EFI TERMINATOR X MAX - GEN IV 4.8/5.3/6.0 GM TRUCK ENGINES AND LS2/LS3
Item #: HOL/550-928
Condition:
New
Estimated Ship Date: 8/17/2023
Price: $1,875.95
Description: HOLLEY EFI TERMINATOR X MAX - GEN IV 4.8/5.3/6.0 GM TRUCK ENGINES AND LS2/LS3
Item #: HOL/550-928T
Condition:
New
Estimated Ship Date: 8/17/2023
Price: $1,822.95
Description: HOLLEY EFI TERMINATOR X MAX - GEN IV 4.8/5.3/6.0 GM TRUCK ENGINES AND LS2/LS3
Item #: HOL/550-935
Condition:
New
Estimated Ship Date: 8/17/2023
Price: $1,875.95
Description: HOLLEY EFI TERMINATOR X MAX - GEN IV 4.8/5.3/6.0 GM TRUCK ENGINES AND LS2/LS3
Item #: HOL/550-935T
Condition:
New
Estimated Ship Date: 8/17/2023
Price: $1,822.95
Description: HOLLEY EFI TERMINATOR X MAX - LS1/LS6
Item #: HOL/550-926T
Condition:
New
Limited Supply: Only 2 Left!
Estimated Ship Date: 8/17/2023
Price: $1,822.95
Description: HOLLEY EFI TERMINATOR X MAX - LS1/LS6
Item #: HOL/550-934
Condition:
New
Estimated Ship Date: 8/17/2023
Price: $1,875.95
Description: HOLLEY EFI TERMINATOR X MAX - LS1/LS6
Item #: HOL/550-934T
Condition:
New
Limited Supply: Only 3 Left!
Estimated Ship Date: 8/17/2023
Price: $1,822.95
Description: HOLLEY EFI TERMINATOR X MAX - LS1/LS6
Item #: HOL/550-929
Condition:
New
Estimated Ship Date: 8/17/2023
Price: $1,666.95
Description: HOLLEY EFI TERMINATOR X MAX - LS1/LS6
Item #: HOL/550-929T
Condition:
New
Limited Supply: Only 0 Left!
Estimated Ship Date: 8/17/2023
Price: $1,614.95
Description: HOLLEY EFI TERMINATOR X MAX - LS1/LS6
Item #: HOL/550-932
Condition:
New
Estimated Ship Date: 8/17/2023
Price: $1,666.95
Description: HOLLEY EFI TERMINATOR X MAX - LS1/LS6
Item #: HOL/550-932T
Condition:
New
Limited Supply: Only 4 Left!
Estimated Ship Date: 8/17/2023
Price: $1,614.95
Description: HOLLEY EFI TERMINATOR X MAX - LS1/LS6
Item #: HOL/550-916
Condition:
New
Estimated Ship Date: 8/17/2023
Price: $1,666.95
Description: HOLLEY EFI TERMINATOR X MAX - LS1/LS6
Item #: HOL/550-916T
Condition:
New
Estimated Ship Date: 8/17/2023
Price: $1,614.95
Description: HOLLEY EFI TERMINATOR X MAX - LS1/LS6
Item #: HOL/550-919
Condition:
New
Estimated Ship Date: 8/17/2023
Price: $1,666.95
Description: HOLLEY EFI TERMINATOR X MAX - LS1/LS6
Item #: HOL/550-919T
Condition:
New
Estimated Ship Date: 8/17/2023
Price: $1,614.95
Description: HOLLEY EFI TERMINATOR X MAX - LS1/LS6
Item #: HOL/550-926
Condition:
New
Estimated Ship Date: 8/17/2023
Price: $1,875.95
Description: HOLLEY EFI TERMINATOR X MAX - UNIVERSAL MPFI KIT
Item #: HOL/550-959
Condition:
New
Estimated Ship Date: 8/17/2023
Price: $1,875.95
Description: HOLLEY EFI TERMINATOR X MAX - UNIVERSAL MPFI KIT
Item #: HOL/550-942
Condition:
New
Estimated Ship Date: 8/17/2023
Price: $1,666.95
Description: HOLLEY EFI TERMINATOR X MAX - UNIVERSAL MPFI KIT
Item #: HOL/550-950
Condition:
New
Estimated Ship Date: 8/17/2023
Price: $1,666.95
Description: HOLLEY EFI TERMINATOR X MAX GM GEN V LT DIRECT INJECTION KIT - EARLY
Item #: HOL/550-1620
Condition:
New
Limited Supply: Only 3 Left!
Estimated Ship Date: 8/14/2023
Price: $3,021.95
Description: HOLLEY EFI TERMINATOR X MAX GM GEN V LT DIRECT INJECTION KIT - EARLY
Item #: HOL/550-1630
Condition:
New
Limited Supply: Only 0 Left!
Estimated Ship Date: 8/14/2023
Price: $3,333.95
Description: HOLLEY EFI TERMINATOR X MAX GM GEN V LT DIRECT INJECTION KIT - EARLY
Item #: HOL/550-1620LSD
Condition:
New
Estimated Ship Date: 8/14/2023
Price: $3,021.95
Description: HOLLEY EFI TERMINATOR X MAX GM GEN V LT DIRECT INJECTION KIT - EARLY
Item #: HOL/550-1610
Condition:
New
Estimated Ship Date: 8/14/2023
Price: $3,021.95
Description: HOLLEY EFI TERMINATOR X MAX GM GEN V LT DIRECT INJECTION KIT - EARLY
Item #: HOL/550-1630LSD
Condition:
New
Estimated Ship Date: 8/14/2023
Price: $3,229.95
Description: HOLLEY EFI TERMINATOR X MAX GM GEN V LT DIRECT INJECTION KIT - LATE
Item #: HOL/550-1621
Condition:
New
Limited Supply: Only 0 Left!
Estimated Ship Date: 8/14/2023
Price: $3,021.95
Description: HOLLEY EFI TERMINATOR X MAX GM GEN V LT DIRECT INJECTION KIT - LATE
Item #: HOL/550-1631
Condition:
New
Limited Supply: Only 0 Left!
Estimated Ship Date: 8/14/2023
Price: $3,333.95
Description: HOLLEY EFI TERMINATOR X MAX GM GEN V LT DIRECT INJECTION KIT - LATE
Item #: HOL/550-1631LSD
Condition:
New
Limited Supply: Only 0 Left!
Estimated Ship Date: 8/14/2023
Price: $3,229.95
Description: HOLLEY EFI TERMINATOR X MAX GM GEN V LT DIRECT INJECTION KIT - LATE
Item #: HOL/550-1621LSD
Condition:
New
Estimated Ship Date: 8/14/2023
Description: HOLLEY EFI TERMINATOR X MAX GM GEN V LT DIRECT INJECTION KIT - LATE
Item #: HOL/550-1611
Condition:
New
Limited Supply: Only 0 Left!
Estimated Ship Date: 8/14/2023
Price: $3,021.95
Description: HOLLEY EFI TERMINATOR X MAX STEALTH 4150 - BLACK
Item #: HOL/550-1012
Condition:
New
2
Price: $2,109.95
Description: HOLLEY EFI TERMINATOR X MAX STEALTH 4150 - BLACK
Item #: HOL/550-1015
Condition:
New
Limited Supply: Only 6 Left!
Estimated Ship Date: 9/14/2023
Price: $2,578.95
Description: HOLLEY EFI TERMINATOR X MAX STEALTH 4150 - GM LS ENGINES
Item #: HOL/550-1028
Condition:
New
Limited Supply: Only 2 Left!
Estimated Ship Date: 9/28/2023
Price: $2,353.95
Description: HOLLEY EFI TERMINATOR X MAX STEALTH 4150 - GM LS ENGINES
Item #: HOL/550-1030
Condition:
New
Limited Supply: Only 1 Left!
Estimated Ship Date: 9/28/2023
Price: $2,353.95
Description: HOLLEY EFI TERMINATOR X MAX STEALTH 4150 - GM LS ENGINES
Item #: HOL/550-1029
Condition:
New
Limited Supply: Only 0 Left!
Estimated Ship Date: 9/28/2023
Price: $2,353.95
Description: HOLLEY EFI TERMINATOR X MAX STEALTH 4150 - GM LS ENGINES
Item #: HOL/550-1065
Condition:
New
Limited Supply: Only 1 Left!
Estimated Ship Date: 7/27/2023
Price: $2,353.95
Description: HOLLEY EFI TERMINATOR X MAX STEALTH 4150 - GM LS ENGINES
Item #: HOL/550-1064
Condition:
New
Limited Supply: Only 5 Left!
Estimated Ship Date: 9/14/2023
Price: $2,353.95
Description: HOLLEY EFI TERMINATOR X MAX STEALTH 4150 - GM LS ENGINES
Item #: HOL/550-1063
Condition:
New
Limited Supply: Only 0 Left!
Estimated Ship Date: 9/14/2023
Price: $2,353.95
Description: HOLLEY EFI TERMINATOR X MAX STEALTH 4150 - GOLD
Item #: HOL/550-1013
Condition:
New
Estimated Ship Date: 9/14/2023
Price: $2,187.95
Description: HOLLEY EFI TERMINATOR X MAX STEALTH 4150 - GOLD
Item #: HOL/550-1016
Condition:
New
Limited Supply: Only 6 Left!
Estimated Ship Date: 9/14/2023
Price: $2,578.95
Description: HOLLEY EFI TERMINATOR X MAX STEALTH 4150 - SHINY
Item #: HOL/550-1011
Condition:
New
Limited Supply: Only 9 Left!
3
Price: $2,109.95
Description: HOLLEY EFI TERMINATOR X MAX STEALTH 4150 - SHINY
Item #: HOL/550-1014
Condition:
New
Limited Supply: Only 1 Left!
Estimated Ship Date: 9/14/2023
Price: $2,578.95
Description: HOLLEY EFI TERMINATOR X STEALTH 2X4 4500 KIT - BLACK
Item #: HOL/550-1081
Condition:
New
Limited Supply: Only 1 Left!
Estimated Ship Date: 9/14/2023
Price: $3,391.95
Description: HOLLEY EFI TERMINATOR X STEALTH 2X4 4500 KIT - SHINY
Item #: HOL/550-1080
Condition:
New
Estimated Ship Date: 9/14/2023
Price: $3,391.95
Description: HOLLEY EFI TERMINATOR X STEALTH 4150 - BLACK
Item #: HOL/550-1002
Condition:
New
Limited Supply: Only 0 Left!
9
Price: $1,770.95
Description: HOLLEY EFI TERMINATOR X STEALTH 4150 - BLACK
Item #: HOL/550-1005
Condition:
New
5
Price: $2,285.95
Description: HOLLEY EFI TERMINATOR X STEALTH 4150 - GOLD
Item #: HOL/550-1006
Condition:
New
4
More About Terminator X EFI Kits
Standalone Engine Management, at a budget price. Plug and Play with most domestic V8 Engines!
- Plug and play Domestic V8 engine control, such as conventional push rod Chevrolet and Chrysler engines.
- Includes EV1 Injector Harness
- GM 4L60E/80E Transmission Control Harness (Terminator X Max Only)
- High Impedance Injector Drivers will safely power most Stock injectors, and Holley EFI Injectors. Injector support chart provided in the instructions (Will not control Low Impedance Injectors)
- Bosch LSU 4.9 wideband to relay AFR information to the ECU for accurate reading and precise tuning control.
- Built in 1bar MAP Sensor, vacuum hose adapters included (1/8th – ¼ and 3/16ths) - or for Boosted applications, you can disable the internal MAP sensor, and utilize an external MAP Sensor, the harness comes with the connector terminated, making the install
- MAP Sensor vacuum hose adapters (1/8th – ¼ and 3/16ths)
- Plug and plug ignition capability with Dual Sync and HyperSpark Distributors, adapter 558-323 required for HyperSpark Distributors.
- 4 Inputs – 12v, Ground, 5v, and Frequency, for things such as additional pressure sensors, or activation triggers for nitrous activation, or a trans brake
- Boost Control – Boost vs Time, Boost vs Gear, Boost vs RPM, Boost vs Speed, Boost Safeties
- Nitrous Control – Single Channel of Wet or Dry, Progressive or Non-Progressive, Rich/Lean Safeties, and target Closed Loop AFR
- Advanced Tables – 4x 1D Tables, 1x 1D per Gear Table, 4x 2D Tables, 1x 2D per Gear Table, can be used for any custom tables you can dream up, such as Flex Fuel Sensor Offset Table, or a custom fuel or oil pressure safety!
- On-Board Diagnostic LEDS for: ECU Power – Engine Run – Wideband Status – TPS Calibration – Crank Signal –Cam Signal. Allow you to identify any Critical engine issues at a glance
- The included 3.5" Touchscreen Handheld contains a calibration wizard, that allows you to quickly build a base tune for any domestic V8 engine. Additionally the handheld provides internal data-logging and a fully customizable gauge display.
- The compact ECU size allows you to mount it virtually anywhere. Remember, diagnostic LEDS must face up!
- Plug and play compatible with more Holley EFI accessories such as; analog style gauges, shift lights, various modules, and coming soon, 12.3" digital dash support!
- Free EFI Tuning Software for complete control of your Terminator X power plant