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Description
EFI Terminator X Max - Gen IV 58x Crank - 4x Cam - EV1 Injectors - Transmission Control - 3.5 in. TouchscreenHolley EFI Terminator X Max Gen IV 4. 8 5. 3 6. 0 GM Truck Engines and LS2 LS3 24x Crank 1x Cam EV6 Injectors Transmission Control USB CAN Tuning Cable 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
Holley EFI Terminator X Max - Gen IV 4.8/5.3/6.0 GM Truck Engines and LS2/LS324x Crank - 1x Cam - EV6 Injectors - Transmission Control - USB/CAN Tuning Cable
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 550-916 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!
Not recommended for 4x4 applications with electronic transfer cases. Not compatible with 4L6X transmissions from model year 1995 or before due to year-by-year changes in converter lockup and downshift strategy.
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 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 ???? ?? 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
- Includes: 58x/4x LS Engine Main Harness - EV1 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.
Details:
- Crank Reluctor: 58x
- Ignition Type: GM LS 58x
- Injector Connector: Jetronic / Minitimer (Bosch)
- Terminator LS Options: Fuel, Spark, Transmission
Links
Instruction Sheet
Instruction Sheet
Parts Guide
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
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Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
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4.5 ★★★★★
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Product Reviews
★★★★★ 1
Not worth the money
I've been using now for 3 weeks. I see absolutely no change in anything. No brightness, no hydration no rank or reduction.This doesn't work television forest on the hills of that.I don't work on anything. I will continue using can we change my review if I see any results.
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Reviewed in the United States on June 22, 2025
★★★★★ 5
Gentle serum with nice ingredients
This serum is a milky white color that is a mediun texture (not watery, and not super thick) and spreads well and easily. It absorbs pretty quickly, and doesn't leave me too sticky after, nor has it caused any irritation in over a week of daily use. I also haven't noticed any difference yet in terms of brightening or wrinkle reduction, but 1) know that this can take up to 12 weeks with astaxanthin, and 2) already use niacinamide and vitamin c and have probably already seen as much progress as I can expect in the way of evening out skintone and reducing the appearance of freckles.
In English, it says there are only 6 ingredients, but given the avaialable concentrations on the box (4.3% niacinamide, 0.01% astaxanthin) that doesn't make sense. The full ingredients list is only in Korean, but after using an online image translator can see that both lists include great ingredients that have all proven to be quite effective and are gentle for sensitive skin. I also really appreciate that it has the percent niacinamide on the box because this is a staple ingredient for me and so many products have it that it's nice to be able to know how much I'm using when I combine differemt serums and moisturizers that include it so that I'm in the zone that's best for my skin and not using too much.
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Reviewed in the United States on May 28, 2024
★★★★★ 4
lightweight, did not irritate my skin
I have been using this ampoule for about 3 weeks now and I like how it makes my skin feel. It doesn't feel harsh, my skin didn't seem to mind it because it didn't look or feel irritated after the 3 weeks of use. I am not solely using this product as my night time moisturizer but it is an addition to my other moisturizer. It is easy to apply, doesn't feel heavy, sticky, or tacky. I can't say how this works for existing blemishes and imperfections because I am mainly using this as a prevention. I recently had some of my sun spots laser-ed so I am trying to keep any additional sun spots from appearing again, which is why it is so important for me to keep up with the prevention routine. This product is excellent for that. I did take a look at the ingredients list and while I'm fine with most of it, I did notice there is a silicone in this. I try to avoid silicones but I'm not going to say it is a dealbreaker. All in all I like this product and will keep using this until I'm done with the entire bottle.
I didn't see the ingredients list posted on this page yet so here it is, in case you need to see what's in this serum before making the decision to purchase.
Ingredients:
Water, Butylene Glycol, Phenyl Trimethicone, Niacinamide, Tranexamic Acid, 1,2-Hexanediol, Caprylic/Capric Triglyceride, Polyglyceryl-6 Dicaprate, Arginine, Carbomer, Ethylhexylglycerin, Adenosine, Astaxanthin(100000ppb), Melia Azadirachta Flower Extract, Melia Azadirachta Leaf Extract, Betaine, Ocimum Sanctum Leaf Extract, Corallina Officinalis Extract, Coccinia Indica Fruit Extract, Curcuma Longa (Turmeric)Root Extract, Ascorbic Acid, Tocopherol, Thioctic Acid, Thermus Thermophillus Ferment, Glycerin, Potassium Sorbate
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Reviewed in the United States on May 29, 2024
★★★★★ 5
So far, loving this! I have super sensitive skin and it's causing no issues!
This serum is really nice and easy to apply! It’s on the thin side, so I like to tilt my head upwards and gently release a drop or 2 at a time onto my face. Rub it in from there.
If you drop this into your hand to apply first, you’ll be wasting a lot of product, so don’t go that route.
I do have some sun spots I’m looking to tackle, so hopefully this will help with those!
I also live in a city with high levels of pollution, so I can use all the antioxidants I can get!
I'm excited to see if this helps with some sun damage and spots that I've accumulated over the years.
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Reviewed in the United States on April 30, 2024
★★★★★ 5
Absorbs quickly
I like this ampoule. It has a nice gel-like viscosity and absorbs quickly into my skin and has not caused any irritation. I like that it has no smell. Since I have been using it, I have noticed a general lightening of the dark spots on my cheeks. I have noticed that my skin tone looks brighter since I have started using this. I will continue to use this ampoule in hopes of seeing even more improvement. Overall, I am very happy with this ampoule and think it does a good job of evening out my skin tone and lightening dark spots I have on my face making my skin look brighter, in general.
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Reviewed in the United States on July 17, 2024