Terminator X Max 58x/4x EV6 LS MPFI & DBW Throttle & Trans w/o Handheld 550-928T
SKU: 88474172639

Terminator X Max 58x/4x EV6 LS MPFI & DBW Throttle & Trans w/o Handheld 550-928T

Sale price$967.47 Regular price$1074.97
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Description

Terminator X Max 58x/4x EV6 LS MPFI & DBW Throttle & Trans w/o Handheld 550-928TOverview: 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 550-928 also has 4L60E or 4L80E Transmission control and 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 LS 4.8/5.3/6.0 LS Truck Engines and LS2/LS3 with 58x Crank, 4x Cam and 4L60E/4L80E transmissions, Drive-by wire throttle body control, 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 Max 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.
  • MAP Sensor vacuum hose adapters (1/8th – ¼ 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
  • 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 - 4L60E/4L80E Transmission Control Harness - Terminator X MAX ECU - ECU Main Power Harness - Bosch LSU 4.9 Wideband Oxygen Sensor - Input/Output Harness - and assor

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, Transmission
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: 88474172639

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Amazon Customer
Belleville, US
★★★★★ 5
easy to access interior with many different pockets
Color: Desert
The back pack is awsome. It's soft, elegant and fits a lot of items...can be used in lieu of small carry on. I liked the openness of the interior area. The inside utility clear pouch was only 1 pouch, not 3 like the video. But I like it better with 1 pouch which leaves me options for larger items. The shoe pouch can be used for other items instead of shoes, if your interested.
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Reviewed in the United States on April 25, 2026
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Benjamin
Whiting, US
★★★★★ 5
Pretty good
Color: Grey
I took this with me on a recent trip and it handled everything from airport security to long walks with ease. The 30‑liter capacity is generous without feeling bulky — it fits under airline seats and in overhead bins effortlessly. What really stands out is the organization. There are thoughtful compartments for clothes, shoes, a water bottle, and even a separate space for toiletries or gym gear. The dedicated laptop sleeve fits my device securely, and the smaller pockets keep chargers, pens, and accessories neatly sorted so nothing gets lost. The padded straps and back panel make it comfortable for extended wear, and I didn’t feel any strain even when the bag was full. The material feels durable and water‑resistant, so I wasn’t worried when I got caught in light rain. The sleek design is versatile enough for travel, work, gym, or everyday use. Overall this backpack delivers excellent value and convenience. If you want a reliable, well‑organized bag for travel or daily life, this is definitely worth considering. I’ll be using mine for many trips to come!
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Reviewed in the United States on March 3, 2026
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Nia Mack
Los Angeles, US
★★★★★ 5
Perfect Personal Item , travel Size Bagpack!
Color: Black, Color: Black
I’m so happy with this travel backpack!! Roomy and you can pack a pair of shoes also underneath. I recently went on a Cruise and had to fly into Florida coming from California, two different climates. I easily pulled off my sweats and shoes and slipped into a pair shorts and swimsuit and flip flops at the airport , because I had it all and 2 of my 3-1-1 bags etc. Another great feature is the see thru zip compartments ! Endless pockets and this bag is consider that “Personal Item” that stows under the seat in front of you. Quality is great and it’s a beautiful bag! Price , amazing Value!
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Reviewed in the United States on January 24, 2026
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margaret porter
Belleville, US
★★★★★ 5
PERFECT BACKPACK!
Color: Chocolate
I cant say enough about this backpack. First of all the brown color is super cute. Its incredibly spacious, great for travel, so many compartments.... love the space for shoes. Just perfect
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Reviewed in the United States on May 21, 2026
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Terri Gardner
Whiting, US
★★★★★ 4
Nice personal item for travel
Color: Black
I recently used this bag on my cruise. It fits perfectly under the seat for a personal item. The quality is nice and the bag is spacious to back many items. The only thing I didn’t like is that I kept having to adjust the straps due to them coming loose.
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Reviewed in the United States on January 27, 2026

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