Pay in installments of $250.00 with
,
and
Shipping Estimate
USA
- USA
- CAN
- USA
- CAN
Ships within 48 hours · Estimated delivery Aug 18 - Aug 23
Promo Codes Available:
For Your Every Summer RSVP, with Code: SUMMER15
Description
EFI Terminator X Max - Gen IV 58x Crank - 4x Cam - EV6 Injectors - Drive-By-Wire Throttle Body 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 Multec 2 Injectors Drive By Wire Throttle Body 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
Holley EFI Terminator X Max - Gen IV 4.8/5.3/6.0 GM Truck Engines and LS2/LS324x Crank - 1x Cam - Multec 2 Injectors - Drive-By-Wire Throttle Body 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 550-930 also has drive by wire (DBW) 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 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!
Terminator X ECU's are designed to be mounted with the LED's facing up. Designed to work with GM Throttle body P/N's - 12570800 Designed to work with GM Throttle Pedal P/N - 10379038
Features:
- Designed for GM 4.8/5.3/6.0 LS Truck Engines and LS2/LS3 with 58x Crank, 4x Cam and a Drive-By-Wire Throttle Body, with 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 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.
- 4 Outputs ???? Ground, PWM - , for accessories such as; fans, boost control, nitrous control, IAC Kit, and More
- 4 Inputs ???? 12v, Ground, 5v, and Frequency, for things such as additional pressure sensors, or activation triggers for nitrous activation, or a trans brake
- 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 - EV6 Injector Harness - DBW Throttle Body 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: USCAR (EV6)
- Terminator LS Options: Fuel, Spark, Drive-by-Wire
Links
Instruction Sheet
Instruction Sheet
Parts Guide
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
4.8 ★★★★★
Based on 28 reviews
Sort
Product Reviews
★★★★★ 5
Rock bottom price, better than rock bottom quality
Color: Black
tl;dr there are definitely better chairs available, even better chairs that aren't that much more money, but if rock bottom is your price target, this one is hard to beat.
I bought my 7-year-old a $30 task chair at Target even knowing it's weight limit of 150 pounds implied it was of very, uh, questionable construction. He weighs 50 pounds though so I figured it'd be fine for occasional use for him. It was basically trash, however.
I found this instead and it's pretty solid for $60 delivered. The instructions are clear and easy to follow. The actual assembly is as easy as it gets for a task chair (snap casters in, put in a couple screws). Be aware that the seat base is 100% plastic, although I'd be astounded if anyone used cast aluminum for a seat base anywhere close to $100. It is not _particularly_ comfortable, ergonomic, or well made, although it is of slightly better construction than I was expecting. I'm 5' 11" and 200 pounds and the word I'd use to describe sitting on it is "acceptable". I suspect the seat foam is easily the weakest link regarding longevity if used by an adult.
The real benefit here is that $60 _feels_ like the correct price for a chair of this quality, whereas a local big box store is going to want close to double that, especially without a "sale" going on.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 31, 2026
★★★★★ 5
Easy to assemble, and comfortable!
Color: Blue
I bought this chair for my teenaged son, who has a small student's desk in his room (also ordered and assembled at the same time). This fits perfectly for the small desk, and is reasonably comfortable for a medium-sized adult, teenager, or older child. Once put together, the chair itself appears to work flawlessly, seems comfortable enough, the height is easily adjustable, and of course -- the most important part, according to my son -- "spins silently 'round and 'round really fast for a long time." The blue color is a nice, deep blue hue that works well for him and makes it stand out a little more than your average black chair. I was able to assemble it fairly quickly without issues. My son uses it to sit in for his schoolwork and computer gaming/programming/hobbies at his desk, etc. and he says it's comfortable, even after sitting in it for 1-2 hours at a time.
With this type of chair, you're getting exactly what you pay for and what you see in the pictures. No more, no less. The price is fairly reasonable, it feels sturdy, and if you're looking for an easy and simple office chair for light task work at a computer desk for a teenager or college student with limited space, this is an easy win. While it's not the smallest office chair out there, it's certainly not a large one, either. I am a medium-sized woman at 5'4", and my bottom doesn't hang off of it; that said, a taller/bigger person might want to look into something a little larger for comfort, if they have the space for it. My son is 5'6" (and growing) and slim, so it works perfectly well for him. My husband, who is larger and taller than us, sat in it and said it didn't feel bad...but he was unsure how comfortable it would be sitting in it for longer stretches of time. So...your mileage may vary.
Overall, this was exactly what we were looking for and precisely what we expected for this product, so we're happy. I will update this review should anything change.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 3, 2019
★★★★★ 5
Great small rolling desk chair.
Color: Black
Small footprint for small office. Comfortable. Nice back support and super easy to assemble. Told my 300lb son he’s not to sit on it. It’s my chair.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 7, 2026
★★★★★ 3
Good as a task chair, but terrible for long-term sitting
I have revised and updated this review after two years after getting a replacement chair, downgrading it from 5 stars to 3 stars.
I have owned an office chair from Staples for two years. It was a $200 office mesh chair. It seemed pretty comfortable when sitting in it at the store. Unfortunately, it turned out to be uncomfortable for long sitting duration, I seemed to end up slouching often because it wasn't very supportive. The seat depth was probably longer than optimal for my legs. The mesh seating was not supportive. With these issues, I thought a task chair would be more useful.
But I didn't want to spend so much money on a chair again, so here comes Amazon to the rescue. This chair allows me to sit comfortably with a reasonable seat depth, so I'm now able to sit with proper posture. The foam base initially felt better than the mesh base. This all led to a 5 star rating. After a year and a half, however, it has come to my realization that the foam seating is terribly inadequate for long periods of sitting. Maybe after a year the foam was worn out to the point that it was no longer supportive. After long periods of sitting, I could feel the wood support base. I tried a seat cushion to no avail.
In the end, I got rid of this chair and purchase a chair from one of the high-end office ergonomic chair manufacturers. It cost 10x more than the Amazon chair, but it's night and day with regards to being comfortable. It is worth the cost to protect my back.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on August 21, 2019
★★★★★ 5
Very nice office chair
Color: Black
This is a very nice chair at a great price. The cushion and mesh back are really comfortable. It has great height adjustment and range. Assembly was easy. Exactly what I was looking for to use in my home office.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 21, 2026
recommand products
Vibrant Tallahassee, Florida - A Colorful Painting Of A Building
24.00
Vibrant Tianjin, China - A Painting Of A Building
19.95
Vibrant Thornton, Colorado - A Colorful Painting Of A Building
19.95
Vibrant Tartus, Syria - A Painting Of A Building With A Spire
20.55
Vibrant Taipei, Taiwan - A Painting Of A City
24.00