SKU: 62582284319

Terminator X Max 58x/4x EV1 LS MPFI w/ DBW Throttle Body & Transmission 550-935

Sale price$989.97 Regular price$1099.97
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Ships within 48 hours · Estimated delivery Aug 2 - Aug 7

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Description

Terminator X Max 58x/4x EV1 LS MPFI w/ DBW Throttle Body & Transmission 550-935Overview: 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. 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 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
  • The included 3.5" Touchscreen Handheld contains a calibration wizard, that allows you to quickly build a base tune for any LS engine. Additionally the handheld provides internal data-logging and a fully customizable gauge display.
  • 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: 62582284319

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Laurie
West Palm Beach, US
★★★★★ 5
Great bedding at a great price!
Color: Tide Pool Blue, Size: King
I can’t believe how great this is for the price! Super soft, comfy and very warm. Perfect for wintertime. I don’t think I’d use it for other seasons…but it’s great right now.
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Reviewed in the United States on January 29, 2026
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Rose C
Fort Morgan, US
★★★★★ 4
Warm, soft, cozy… not very fluffy though
Color: Tide Pool Blue, Size: Full/Queen
I LOVE this comforter!! The color is beautiful, it’s super soft, it’s nice and warm, and it has a nice weight to it. I will say it isn’t as fluffy as it seems in the pictures, there doesn’t seem to be any filling between the 2 layers, and if there is, it’s minimal. It’s more like the thickness of a similar double sided throw blanket. It also has the tendency to grab any small debris which clings to it, but this is to be expected with this type of fabric. I would not recommend this comforter for pet owners as it will definitely be covered in hair and whatever else your furbabies may track in! Despite the lack of fluffiness and it constantly holding on to any loose thread or other random debris, I am still very happy with my purchase. Very good comforter for the price and it looks beautiful on the bed!!
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Reviewed in the United States on October 11, 2024
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Amy Wilson
Cuba, US
★★★★★ 5
I originally got the King set & loved it so much I ordered another in Queen size!
Color: Charcoal, Size: King
I didn't add a picture because the advertised picture is exactly what it looks like (and my beds not made at the moment, lol). It's so soft, comfortable, cosey and warm. It's thicker and fluffier than I expected, but still very lightweight. The price was great for a king size bed with 2 king sized pillow cases! I love it so much I ordered a second set in Queen size, just to have the cases for my smaller queen pillows that go in front of the King pillows and to have the extra blanket as a cozy throw. The only drawback is it does snag easily on rings, fingernails, etc. (also another reason I ordered the second one to lay across the places that I've snagged & a few that were already snagged when I got them). However, it's so cozy that I didn't want to go through the hassle of sending it back and having to wait for a new one! I'm very glad that it was suggested as an add on when I ordered the mattress pad & that I chose to add it on. I'd definitely recommend it to anyone!
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Reviewed in the United States on January 23, 2023
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Everyday Joe
Lake Worth, US
★★★★★ 5
Comforter
Color: Charcoal, Size: King
Great value very soft very warm as well as being lite weight.
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Reviewed in the United States on April 14, 2026
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Christina Billings
Birmingham, US
★★★★★ 5
Favorite Winter Bedding!
Color: Red Buffalo Plaid, Size: King
Cozy, warm, and so so soft! Washes up beautifully! A great bed set for the cost. Thank you!
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Reviewed in the United States on January 27, 2026

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