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- USA
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Ships within 48 hours · Estimated delivery Jul 8 - Jul 13
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Description
Holley Terminator X MAX Engine Management Systems 550-927TERMINATOR X MAX MPFI W TRANS & DBW 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
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 550-927 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 LS 4.8/5.3/6.0 Truck Engines with 24x crank reluctor, Transmission Control, Drive-by Wire throttle body control, and Multec 2 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-Board Diagnostic LEDS for: ECU Power – Engine Run – Wideband Status – TPS Calibration – Crank Signal –Cam Signal. Allow you to identify any Critical engine issues a
- Nitrous Control – Single Channel of Wet or Dry, Progressive or Non-Progressive, Rich/Lean Safeties, and target Closed Loop AFRadjustable through included 3.5” full color touchscreen, base tune easily created via handheld Wizard!
- 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 - Multec 2 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 ass
Specs
| Brand | Holley EFI |
|---|---|
| Crank Reluctor | 24x |
| Emission Code | 3 |
| Ignition Type | GM LS 24x |
| Injector Connector | Multec 2 |
| Product Type | Terminator X Max LS MPFI |
| Terminator LS Options | Fuel, Spark, Drive-by-Wire, Transmission |
| Part Number | 550-927 |
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
4.7 ★★★★★
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Product Reviews
★★★★★ 5
Matcha Powder
Flavor Name: Culinary, Size: 1.06 oz (Pack of 1)
Jade Leaf Matcha has become my go-to matcha powder, and I keep coming back to it time and time again. The quality is consistently great, with a fresh flavor and vibrant green color that mixes well into drinks and recipes. I use it regularly for matcha lattes, smoothies, and even baking, and it always delivers great results.
For a culinary-grade matcha, I think the flavor is excellent—not overly bitter and smooth enough to enjoy daily. It blends easily and provides the perfect matcha taste without breaking the budget. I’ve tried other brands over the years, but this is the one I continue to repurchase. If you’re looking for a reliable, high-quality matcha for everyday use, I highly recommend giving this one a try.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 7, 2026
★★★★★ 5
Good taste,
Flavor Name: Culinary, Size: 3.53 oz (Pack of 1)
This matcha has a nice, rich flavor and works really well for lattes. It mixes easily without clumps and the color is vibrant. Good quality for the price and perfect for daily use.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 26, 2026
★★★★★ 4
Matcha
Flavor Name: Culinary, Size: 1.06 oz (Pack of 1)
I haven’t decided if I really like Matcha, as I got this, just to find that out. I find that the packaging is interesting, and it is best, probably, to store it in the package it comes in. It has a mild flavor, and I am just making tea with it, as I don’t bake any more. It is a bright green powder with a smooth, mild taste, and in a clever package.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 7, 2026
★★★★★ 5
A Premium Matcha Experience for the True Connoisseur
Flavor Name: Culinary, Size: 1.06 oz (Pack of 1)
I recently had the pleasure of trying the Jade Leaf Matcha Organic Premium Ceremonial Grade Matcha Green Tea Powder, and it truly lives up to its reputation as a high-quality product. As someone who enjoys matcha regularly, I was eager to compare this offering to others on the market, and I have to say I was very impressed.
The first thing I noticed was the vibrant green color of the powder. It’s a rich, deep green that is indicative of the quality and freshness of the leaves. When prepared, the tea has a smooth, silky texture and a natural sweetness that makes it enjoyable both on its own and as an addition to smoothies or lattes. I appreciate that this matcha doesn’t have the bitterness that can sometimes accompany lesser-quality varieties, making it a perfect choice for ceremonial use or a relaxing daily treat.
As a ceremonial grade matcha, it’s clear that Jade Leaf has carefully sourced and processed the tea leaves. The flavor is balanced and complex, with grassy, vegetal notes followed by a subtle sweetness. It has the perfect level of umami, which is an essential characteristic of a high-quality matcha. I’ve tried a variety of brands, but this one stands out for its consistency and superior taste.
The packaging is also noteworthy. The resealable bag ensures the matcha stays fresh, which is crucial for preserving its delicate flavor and antioxidants. It’s easy to scoop out the right amount without making a mess, and the instructions on the back are clear and helpful for those new to preparing matcha.
Whether you’re a seasoned matcha drinker or new to the world of green tea, this Jade Leaf matcha provides a top-notch experience. I highly recommend it for anyone looking for an authentic, high-quality matcha that delivers excellent taste and a sense of calm and clarity with every sip.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 12, 2026
★★★★★ 5
The all day energy
Flavor Name: Culinary, Size: 1.06 oz (Pack of 1)
Great taste when you know how to make it..gives me full of energy, the smell.is fresh, the color is the perfect green, not grit and the price is reasonable. Drink it in a tea drink or smoothie . Smooth texture. Very drinkable.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 26, 2026
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