SKU: 38463885972

Terminator X Max 58x/4x EV1 LS MPFI & DBW Throttle & Trans w/o Handheld 550-935T

Sale price$967.47 Regular price$1074.97
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Ships within 48 hours · Estimated delivery Aug 13 - Aug 18

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Description

Terminator X Max 58x/4x EV1 LS MPFI & DBW Throttle & Trans w/o Handheld 550-935TOverview: 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 EV1 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 - EV1 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 Jetronic / Minitimer (Bosch)
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: 38463885972

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Anahi
Draper, US
★★★★★ 5
BUY THIS!
Color: Black
Got this as a gift for my stepdad- he loves it!
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Reviewed in the United States on February 1, 2026
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RK
Belleville, US
★★★★★ 3
Not the quality I expected
Color: Brown
Good but not the quality I expected
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Reviewed in the United States on December 27, 2025
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B.Nicole
Los Angeles, US
★★★★★ 5
Perfect Drawer Organizers—Love the Assorted Sizes
Color: Clear
I really love these drawer organizers. The quality is great, and the assorted sizes are exactly why I decided to purchase them. I used a few inside my vanity to help keep everything more organized, and they work perfectly for separating smaller items without everything getting cluttered together. I like that there are multiple sizes included because it makes it easy to customize the layout for different drawers and products. One feature I really appreciate is the non-slip bottom. They stay in place well and don’t slide around every time I open and close my drawers, which makes a huge difference. The clear plastic design also makes it easy to quickly see where everything is without digging through the drawer making a mess. They feel sturdy and durable, not flimsy like some other organizers I’ve tried. I also like that they can be stacked when not in use, which helps save space. Best for: vanities, makeup organization, bathroom drawers, office supplies, and general home organization Overall, these are practical, well made, and really help make drawers look cleaner and more organized. Definitely happy with my purchase.
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Reviewed in the United States on May 11, 2026
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John Book
Lake Worth, US
★★★★★ 5
Clear, Stable, and Surprisingly Better Than IKEA
Color: Clear
I didn’t expect to be this impressed by drawer organizers, but the Vtopmart 25 PCS Clear Plastic Drawer Organizers really delivered. The non-slip silicone pads actually work — once placed, the trays don’t slide around at all, even when opening and closing drawers frequently. That alone makes a huge difference in daily use. What I love most is how much space they save while keeping everything clearly visible. The clear plastic makes it easy to find what I need at a glance, and the variety of sizes lets me customize each drawer instead of forcing everything into awkward layouts. All the organizers have a solid, usable depth, so items don’t tip over or feel cramped. Cleaning is effortless — a quick wipe and they look new again. Compared to IKEA organizers I’ve used before, these feel more practical, easier to maintain, and honestly more flexible. Add in the great price for a 25-piece set, and this feels like one of those simple purchases that quietly makes everyday life more organized and less frustrating.
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Reviewed in the United States on February 23, 2026
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Reviews by Christopher
Cuba, US
★★★★★ 5
Keeps things organized
Color: Clear
These are worth buying. They can store so many things. We are using it for our vanities, and they work amazingly. They are super sturdy, and the clear plastic gives them a clean look. These are very helpful to have.
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Reviewed in the United States on April 5, 2026

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