SKU: 98628791770

Terminator X Max 58x/4x EV6 LS MPFI & DBW Throttle w/o 3.5 Handheld - 550-931T

Sale price$877.48 Regular price$974.98
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Description

Terminator X Max 58x/4x EV6 LS MPFI & DBW Throttle w/o 3.5 Handheld - 550-931TOverview: Take control of your LS engine with Terminator X Max! 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 Max features real time fuel learn, high impedance injector drivers, an integrated 1bar MAP sensor, and 4 programmable inputs and outputs. The inputs

Overview:

Take control of your LS engine with Terminator X Max! 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 Max 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. Part number 550-931 also has Drive-By Wire Throttle Body control. Terminator X Max comes fully loaded with base maps for common LS engine combinations to get you out of the garage and on the road/track fast. These Terminator X kits include a USB/CAN tuning cable instead of the 3.5" Handheld LCD, these kits require the use of the free Terminator X Software for initial setup. The Terminator X Software includes multiple base calibrations to choose from for either naturally aspirated or boosted engines. 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 MAX has the features and technology you need at a price that won't break the bank!

Features:

  • Designed for GM 4.8/5.3/6.0 LS Truck Engines and LS2/LS3 with 58x Crank, 4x Cam and a Drive-By-Wire Throttle Body, with 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.
  • On-Board 1bar MAP sensor, is perfect for N/A or Nitrous engine combos. If your combination requires a 2+Bar, we recommend GM 12592525, and our adapter part number 558-416.
  • 4 Outputs – Ground, PWM - , for accessories such as; fans, boost control, nitrous control, IAC Kit, and More
  • 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
  • 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
  • Recommended Pedal part number - 10379038
  • Includes: 58x/4x LS Engine Main Harness - EV6 Injector Harness - DBW Throttle Body Harness - Terminator X MAX ECU - ECU Main Power Harness - Bosch LSU 4.9 Wideband Oxygen Sensor - Input/Output Harness - and assorted vacuum adapters.

Application:

Year Make Model Submodel Engine Size
Universal

Specs:

Brand Holley EFI
Crank Reluctor 58x
Emission Code 3
Ignition Type GM LS 58x
Injector Connector USCAR (EV6)
Product Type Terminator X Max LS MPFI
Terminator LS Options Fuel, Spark, Drive-by-Wire
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]
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SKU: 98628791770

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Olivia F.
Carnegie, US
★★★★★ 4
sweet picture book read
Format: Hardcover
I LOVE DAD WITH THE VERY HUNGRY CATERPILLAR is a sweet book of love, written from the perspective of a child to their father. The book uses imagery from other Eric Carle books alongside simple language to describe the connection between father and child, such as "Dad... You are easy to talk to... and you're fun to play with." Ellipses break up sentences across multiple pages, with animals that suit each phrase pictured as parent and child. What I loved: This is a cute and simple read that would be a great gift for a new father or father of a young child, as they can share it together. The short length of the book works well for infants and toddlers, as each page only has a few words. The illustrations are simple, borrowing from past Eric Carle books to maintain his style, and showing the animals most related to the text (for instance, on the page with "but you're still cool" it features polar bears) on a white background. This is a simple style that will work well for little ones. The very hungry caterpillar appears on each page, almost hidden and could make for a fun and easy search for toddlers. Final verdict: Overall, this is a sweet picture book that would make a great gift for new fathers or fathers with young children.
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Reviewed in the United States on February 7, 2022
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Rains Family Farm
Lake Worth, US
★★★★★ 5
Daily devotional with ease.
Format: Imitation Leather
This is a great little devotional book for men. I bought two, one for me and one for my son. I keep mine at my desk at work and read it each morning and I enjoy the insightful quotes and verses that help me start my day. It truly only takes about a minute or two to read through everything and the verses are actually written out on the page with the reference. I know there are a lot of devotionals out there that you can select from, but I like this one because it’s small and compact and acutely directed towards men. The small size is perfect, the price is excellent, and the daily devotionals are spot on.
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Reviewed in the United States on March 3, 2026
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Matthew
Lake Worth, US
★★★★★ 5
Easy and fun to read! Cute and small, easy to travel with
Format: Imitation Leather
I’m obsessed with this book. Each devotion really does only take a minute to read. It’s compact so I leave it in my truck but sometimes I’ll bring it in and keep it by my bed. There’s a book mark ribbon that keeps your place if you get off track of your days and you can’t remember where you left off. And I also like HOW the messages are explained. I grew up in church and I’m always like “hmm that makes sense now that it’s put that way!” lol
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Reviewed in the United States on February 1, 2026
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Niles M
Draper, US
★★★★★ 5
The Answer
Format: Imitation Leather
I purchased this book of Devotions as I was looking for a guide that would be simple to follow and compact. It seemed like I always was making excuses for not being as diligent with my faith. It was easy to tell my self that I could not keep up with God or travel with a guide as it was too inconvenient or bulky. From a content and simplicity to stay focussed, this was the source I needed. From a convenience standpoint, it could not be any better. I had tried apps and digital versions previously and it just wasn't the same. Holding a book and leafing through the pages just feels so much better to me. A definite must for those of you looking for a impactful, yet small and convenient way to continue the journey.
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Reviewed in the United States on May 21, 2026
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Rick
Los Angeles, US
★★★★★ 5
One minute with god
Format: Imitation Leather
Perfect way to start my morning. Spiritual and uplifting.
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Reviewed in the United States on April 2, 2026

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