SKU: 27583900271

Terminator X Max 58x/4x EV6 LS MPFI w/ Trans Control w/o 3.5 Handheld -550-918T

Sale price$877.48 Regular price$974.98
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Ships within 48 hours · Estimated delivery Sep 20 - Sep 25

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Description

Terminator X Max 58x/4x EV6 LS MPFI w/ Trans Control w/o 3.5 Handheld -550-918TOverview: 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 550-918 also has 4L60E or 4L80E Transmission 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, 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
  • Includes: 58x/4x LS Engine Main Harness - EV6 Injector 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 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, 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: 27583900271

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Phoenix, US
★★★★★ 5
Racking Solution for Networking Devices
Color: White*2Pack, Color: White*2Pack
Guess I need to clean that wall... It's not noticeable in person but really came out in these pics lol THE REVIEW I bought these because I wanted to clean up and my networking setup. I refuse to get an all-in-one device from my cable provider, opting instead to purchase my own modem, router (Netgate), switch, and access point (Unifi Cube). This ends as spaghetti and meatballs setup of cables and devices. Nothing beats a racking system for isolating components, protecting them, airflow for cooling, etc. I've attached a couple of pics of the setup. From ground up, you go through modem, router, 10-port managed switch, and out to wifi access point and secondary 5-port switch that are in other rooms. I wanted something that would: - Get these off of the desk level in case of another coffee spill ;-) - Separate them enough to where they can breath without sucking up heat from one another - Keep cables neat/organized This turned out to be a very inexpensive and perfect solution.
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Reviewed in the United States on April 23, 2022
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Timone
Pawtucket, US
★★★★★ 5
Highly recommended
Color: White*2Pack
Keep my cables very organized. The size is perfect to fit the battery of my stand table and cables. Very easy to install. Great product for the money you pay.
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Reviewed in the United States on June 14, 2025
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James
Carnegie, US
★★★★★ 5
Use to clean up a floor mess of cables.
Color: Black*2Pack, Color: Black*2Pack
As advertised
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Reviewed in the United States on September 3, 2025
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Mike
Port Orchard, US
★★★★★ 5
Excellent Wall Mount Option for Power Cord Management
Color: Black*2Pack, Color: Black*2Pack
I recently upgraded my home office setup and was looking for a wall-mountable option for managing my power cables. Many other options I saw did not have mounting screw holes on the side of the basket but only on the top. This product worked perfectly for my needs. It seems quite sturdy and is of quality construction. It is mounted into my drywall with small wall anchors, and easily holds the weight of my surge protector power strip without issue. I did have to provide my own wall anchors though. The length and width of this product was exactly what I wanted, as it is a perfect fit for a wide-bodied surge protector. I would definitely purchase again in the future.
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Reviewed in the United States on August 3, 2021
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Anonymous1
Fort Morgan, US
★★★★★ 5
High quality metal, holds my 10 outlet APC surge protector and a few bricks with wiggle room
Color: White*2Pack
Used heavy weight zip ties instead of the screws same as another reviewer, allowed these to have some movement if needed under my Uplift Desk. Wires fit above under and around with no issue, really impressed with the holding power and the quality of metal for this price point.
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