SKU: 83680769832

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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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: 83680769832

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Judy D.
Massapequa, US
★★★★★ 5
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Color: Multicolor-cx289, Size: 3X-Large
True to size. Material is as described and colors are bright but no gaudy.
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Reviewed in the United States on May 29, 2026
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Mitzi I. Nash
Boise, US
★★★★★ 5
Just what I needed to add to my work wardrobe
Color: Pink Polka Dots Jh1, Size: X-Large
Nice quality, good price, timely delivery, fit as expected, looks professional.
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Reviewed in the United States on May 28, 2026
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Julie H
Cuba, US
★★★★★ 4
Very nice style and material
Color: Maple Leaf Wf157, Size: X-Large, Color: Maple Leaf Wf157, Size: X-Large
This top fit perfectly. I liked the v-neck. The material was so nice -- a tiny bit silky and not clingy. I loved the colors too. But I returned it, because for me (and I know this is really picky), the leaves and flowers were too big for my liking. I felt old in it.
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Reviewed in the United States on May 2, 2026
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Tanisha German
Los Angeles, US
★★★★★ 5
The Perfect Pair: SOJOS Oversized Polarized Aviator Sunglasses, Designer Look & HD UV400 Protection
Color: Brown Tortoise Frame/Brown Grading Lens, Lens Width: 54 Millimeters, Color: Brown Tortoise Frame/Brown Grading Lens, Lens Width: 54 Millimeters
The Perfect Pair: SOJOS Oversized Polarized Aviator Sunglasses for Women | Designer Look & HD UV400 Protection Seriously, stop compromising. I needed that perfect pair of sunglasses that looks totally high-end, gives you that confident, high-impact vibe (exactly like the look in my picture!), but doesn't cost $200. I found them. If you’re searching for the best budget oversized polarized sunglasses, you can stop right here. The SOJOS Retro Aviators are your 2025 essential, proving you absolutely don't need a luxury price tag for luxury features and style. These are a total statement piece. They nail the 2025 chunky aviator trend, that nostalgic, commanding shape that instantly elevates any outfit. I can wear them whether I'm dressed up for a high-fashion moment or just channeling a retro boho vibe with a fedora. What I Love About Them (The Real Talk - Functionality Check) To maximize your confidence in buying these, here are the three non-negotiables that make these my top recommendation: 1. The Lens Quality is the Real Winner (Protection & Clarity): When you go budget, you worry the lenses will be junk, but this is where SOJOS outperforms the competition. They feature HD TAC Polarized Lenses. That technical spec means zero blinding glare when I'm driving or near water, which is a must for me. Forget just "tinted plastic"—this is superior clarity. And, critically, the UV400 protection is guaranteed, blocking 100% of harmful rays—non-negotiable for eye health.   2. The Fit is UNREAL (Comfort Matters!): Style means nothing if your sunglasses squeeze your head and cause headaches. I love that these are incredibly featherlight and stay securely on my nose without being too tight. They feature durable, flexible hinges , which just adds to that feeling of quality you don't expect at this price point. For anyone who struggles with fit, user feedback confirms these are comfortable and don't cause issues even with large cheeks. This is the pair you can genuinely wear all day long.   3. Durability Functionality (Build Quality Checked): The flexible TR frame construction is not just lightweight, it's durable and bendable, making it less likely to break from a sudden shock compared to brittle plastic frames. The inclusion of high-quality, elastic flexible hinges further verifies the quality build, ensuring these shades are built to last, a true functional advantage at this price point. From my everyday drives to weekend adventures, the Oversized Polarized Aviator shape and the dark, sophisticated lens color make these the most versatile shades I own. This is truly the pair that delivers a luxury look and essential eye protection at a smart price. Stop settling for non-polarized, flimsy frames. Level up your look, your confidence, and your eye protection with the SOJOS Retro Aviator.
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Reviewed in the United States on November 3, 2025
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Stylish, lightweight aviators that look more expensive than they are
Color: Brown Tortoise Frame/Brown Grading Lens, Lens Width: 54 Millimeters, Color: Brown Tortoise Frame/Brown Grading Lens, Lens Width: 54 Millimeters
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