SKU: 81810532174

EFI Terminator X - Gen IV - 58x Crank - 4x Cam - EV6 Injectors - USB/CAN Tuning Cable

Sale price$652.48 Regular price$724.98
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Ships within 48 hours · Estimated delivery Aug 12 - Aug 17

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Description

EFI Terminator X - Gen IV - 58x Crank - 4x Cam - EV6 Injectors - USB/CAN Tuning CableHolley EFI Terminator X Gen IV 4. 8 5. 3 6. 0 GM Truck Engines and LS2 LS3 58x Crank 4x Cam EV6 Injectors 3. 5 in. Touchscreen Overview Take control of your LS engine with Terminator X! Don't settle for a junkyard 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

Holley EFI Terminator X - Gen IV 4.8/5.3/6.0 GM Truck Engines and LS2/LS3

58x Crank - 4x Cam - EV6 Injectors - 3.5 in. Touchscreen

Overview
Take control of your LS engine with Terminator X! Don't settle for a junkyard 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 LS 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!

Terminator X ECU's are designed to be mounted with the LED's facing up.

Features:
  • Designed for GM LS Engines with 58x Crank, 4x Cam - and EV6 Injectors.
  • Real-Time fuel map learn, takes the guess work out of tuning your base fuel table.
  • High Impedance Injector Drivers will safely power most Stock LS injectors, and Holley EFI Injectors. Injector support chart provided in the instructions (Will not control Low Impedance Injectors)
  • All of the new Terminator X systems utilize the Bosch LSU 4.9 wideband to relay AFR information to the ECU for accurate reading and precise tuning control.
  • MAP Sensor vacuum hose adapters (1/8th ???? ?? and 3/16ths)
  • 4 Inputs ???? 12v, Ground, 5v, and Frequency, for things such as additional pressure sensors, or activation triggers for nitrous activation, or a trans brake
  • 4 Outputs ???? Ground, PWM - , for accessories such as; fans, boost control, nitrous control, IAC Kit, and More
  • 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
  • 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
  • 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!
  • Includes CAN/USB tuning cable allowing you to configure your ECU and Tuning the engine in real time.
  • 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
  • Includes: 58x/4x LS Engine Main Harness - EV6 Injector Harness - Terminator X ECU - ECU Main Power Harness - Bosch LSU 4.9 Wideband Oxygen Sensor - Input/Output Harness - and assorted vacuum adapters.


Details:
  • Crank Reluctor: 58x
  • Ignition Type: GM LS 58x
  • Injector Connector: USCAR (EV6)
  • Terminator LS Options: Fuel, Spark


Links
Instruction Sheet
Instruction Sheet
Parts Guide
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 81810532174

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Ruth A.
Phoenix, US
★★★★★ 5
Me gusta por no tener sabor
Me gustó pero es muy poco el contenido. Creí que traía dos unidades y no. Creo que me confundí. Me gusta porque es sin sabor y puedes utilizarlas con diferentes bebidas sin alterarles el sabor. No puedo hablar mucho del resultado porque al ser poca entiendo que debía tomar por mas tiempo.
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Reviewed in the United States on March 28, 2026
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Sarah Berg
Battle Creek, US
★★★★★ 5
Great for my belly!
I love this stuff! It helps with digestion and helps me stay full till my next meal! I like to add a sugar free juice packet and then Bubly for a little zest! Its clear. No taste. No grit.
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Reviewed in the United States on July 23, 2025
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Janelle Speca
Belleville, US
★★★★★ 5
Worth the money
It the first thing I drink in the morning Taste is good, easy to use, keeps my body happy.
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Reviewed in the United States on May 6, 2026
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Stephen Levine
Draper, US
★★★★★ 5
Metamucil with a fiz!
Great product. Does what it’s supposed to do.
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Reviewed in the United States on May 9, 2026

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