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Description
Holley Terminator X MAX Engine Management Systems 550-926TERMINATOR X MAX MPFI W TRANS & DBW, LS1 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
TERMINATOR X MAX MPFI W/TRANS & DBW, LS1
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 550-926 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:
- For GM LS1/LS6 engines with 24x crank reluctor with EV1 injectors and 4L60E/4L80E transmissions, and drive-by wire throttle body control.
- 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: 24x 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 assorted
Specs
| Brand | Holley EFI |
|---|---|
| Crank Reluctor | 24x |
| Emission Code | 3 |
| Ignition Type | GM LS 24x |
| Injector Connector | Jetronic / Minitimer (Bosch) |
| Product Type | Terminator X Max LS MPFI |
| Terminator LS Options | Fuel, Spark, Drive-by-Wire, Transmission |
| Part Number | 550-926 |
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- 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
4.5 ★★★★★
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Product Reviews
★★★★★ 5
Ideal Sunscreen for Backpacking Adventures!
Size: 3 Fl Oz (Pack of 2), Style: SPF 30
I recently used Banana Boat Sport Ultra Sunscreen Lotion SPF 30 on a backpacking trip, and it was absolutely perfect for my needs. This sunscreen provided excellent protection and convenience, making it a standout choice for outdoor activities.
First off, the SPF 30 rating offers reliable protection against harmful UV rays, which is crucial for long hours spent in the sun. The lotion goes on smoothly and absorbs quickly without leaving a greasy residue, which is a huge plus when you’re on the move.
The size of the bottle is spot-on for backpacking. It’s compact and lightweight, fitting easily into my gear without taking up too much space. This makes it convenient to carry and apply whenever needed, ensuring that I stay protected without adding bulk to my pack.
The water-resistant formula held up well even during sweaty hikes and water crossings. I didn’t have to reapply excessively, and it stayed effective throughout the day. The lotion also has a pleasant, non-overpowering scent, which is a nice bonus.
In summary, Banana Boat Sport Ultra Sunscreen Lotion SPF 30 is an excellent choice for anyone heading into the great outdoors. Its effective sun protection, ideal size for backpacking, and water-resistant properties make it a must-have for any adventure. Highly recommended for keeping your skin safe and comfortable while exploring!
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Reviewed in the United States on September 7, 2024
★★★★★ 5
Good stuff
Size: 3 Fl Oz (Pack of 2), Style: SPF 30
Banana Boat still smells good and works good too
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 20, 2026
★★★★★ 5
Great sunblock, moisturizer, non-sticky and smells great!!
I’ve used a lot of sunscreen in my life being a fair skinned redhead and this product keeps me moisturized and prevented me from getting burned. We recently went to the French Polynesian islands and the sun hits hard down there and I never burned during our trip. I also absolutely loved how my skin felt moisturized and I never had dry skin from being in the pools and in the ocean. Plus, it smells amazing and you don’t feel sticky once it’s on.😊. Would highly recommend. Wish it was a little less in cost, but I love it.
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Reviewed in the United States on October 3, 2025
★★★★★ 5
Fantastic Sunscreen Lotion!
This sunscreen lotion is AMAZING! It smells fantastic (not at all like most sunscreen...cannot stand that nasty stink). And it is all natural so that is appealing as well. And yeah, it smells good and doesn't leave a gross/overly sticky type residue on your skin. It is also easy to wash off at the end of your day in the sun. And...most importantly, it works GREAT! Out in the sun and I didn't get burned at all. Highly recommend it (especially for anyone sensitive to regular sunscreen or if you can't tolerate the smell of regular sunscreen). This stuff is great!
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Reviewed in the United States on August 29, 2024
★★★★★ 5
It smells great not oily & moisturizes your skin
Love this I never burn & get a nice tan
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Reviewed in the United States on November 10, 2025