SKU: 83352141220

Holley EFI Terminator X Stealth GM LS 4150 - Black 550-1061

Sale price$1079.97 Regular price$1199.97
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Ships within 48 hours · Estimated delivery Sep 15 - Sep 20

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Description

Holley EFI Terminator X Stealth GM LS 4150 - Black 550-106158X Crank 4 Injectors 650 HP Features: Terminator X Stealth 4150 Kits for either 24x or 58x LS engines Supports up to 650HP with Four 100lb. hr. Injectors Terminator X Max kits provide plug and play Transmission control for GM Transmissions Internal 1bar MAP sensor, built into the Terminator X ECU. All of the wiring exits below the fuel injector bowls, for a completely stealth installation Air entry machined to fit most stock style air cleaners with

58X Crank - 4 Injectors - 650 HP


Features:

  • Terminator X Stealth 4150 Kits for either 24x or 58x LS engines
  • Supports up to 650HP with Four 100lb./hr. Injectors
  • Terminator X Max kits provide plug and play Transmission control for GM Transmissions
  • Internal 1bar MAP sensor, built into the Terminator X ECU.
  • All of the wiring exits below the fuel injector bowls, for a completely stealth installation
  • Air entry machined to fit most stock style air cleaners with air cleaner locator provisions
  • External fuel pressure regulator required, set to a base pressure of 58.5 PSI, such as 12-886
  • Integrated ignition timing control ?"Plug and play with factory LS coil sub harness and OEM LS coils ?" no external boxes/modules needed to run Coil Near Plug
  • High Resolution Full Color Touchscreen for Initial Setup, Tuning, and Gauge Displays
  • Simple Calibration Wizard (answer a few questions about your engine and it creates the base map, then starts tuning on its own!) - NO laptop required!
  • Self-tuning ECU means you don’t have to be a computer/tuning wiz to have EFI!
  • Self-tuning ECU means you don?™t have to be a computer/tuning wiz to have EFI!
  • 4 Inputs ?" 12v, Ground, 5v, and Frequency, for things such as additional pressure sensors, or activation triggers for nitrous activation, or a trans brake (Fuel and Oil Pressure Inputs are pre-terminated)
  • 4 Outputs ?" Ground, PWM - , for accessories such as; fans, boost control, nitrous control, IAC Kit, and More
  • The included Genuine Bosch LSU 4.9 Wideband Oxygen Sensor provides real-time Fuel Map Learn!
  • OEM Style TPS/IAC, for years of dependable service
  • Available in 3 finishes: Shiny, Black and Gold
  • Compatible with Holley EFI digital dashes, gauges and fuel system accessories

Specs:

Accelerometer Support Yes
Boost Control Yes
Brand Holley EFI
CAN-BUS Support Yes
CFM 950
Coil Per Cylinder Ignition Support Yes
Color Black
Crank Reluctor 58x
Datalogging Support Yes
Distributor Included No
Dry Nitrous Control Yes
e85 Support No
EGT Support Yes
Emission Code 3
Finish Black
Flange Size 4150
Flange Style Squarebore
Forced Induction Support Yes
Fuel Filter Included No
Fuel Hose Included No
Fuel Injectors Included Yes
Fuel Pressure 58.5 PSI
Fuel Pressure Regulator Included No
Grade Type Performance
Handheld Included Yes
Ignition Timing Control Yes
Ignition Type GM LS 58x
Individual Cylinder Fuel Corrections No
Injector Size 100 lb/hr @ 58.5 PSI
Inlet / Outlet Size 6AN
Intake Manifold Included No
Knock Retard Support Yes
MAP Sensor 1bar
Max Horsepower Rating 650
Multi-Stage Nitrous Control Yes
Product Type EFI System
Progressive Nitrous Control Yes
Sale Category Air and Fuel Delivery
Self-Tuning Yes
Terminator LS Options Fuel, Spark
Throttle Bore 1.75 in.
Throttle Position Sensor Included Yes
Transmission N/A
User-Tuneable Yes
Warning California Proposition 65

Application:

Year Make Model Submodel
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: 83352141220

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4.1 ★★★★★
Based on 7 reviews
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Jeremy Elston
Draper, US
★★★★★ 4
Fun, enticing dog toy. As stated in description it won’t hold up for aggressive chewers
Color: Blue
Rating this based on description. My dog loved this toy. It was smaller than I had pictured in my head, but that was on me. I did read the description ahead of time, which clearly states this is not for aggressive chewers. My dog is trained not to rip toys apart so I wanted to give this a shot, but i guess just her jaw strength and teeth were too much. She carried it everywhere. I turned it on periodically. The movements are small, but enough for her to be captivated with the toy. It did mostly survive for about a day before I needed to take it away due to the Velcro opening. Once it started to pull apart she did chew a piece of the Velcro off. It might be helpful with a flap over design covering the Velcro. I have a singing Santa decoration like this where the Velcro is covered up and I have to pull it back a little to get to the Velcro opening. The gaps on the sides of the closure are a bit to large making it tempt my dog to pull and open it up. I wish there was a more durable option that could hold up to aggressive chewers, but this product was clear about that in the description. I think the opening to the batteries could use some improvement. Granted I do not have the perfect answer to fix this, but I am also not a toy designer.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 19, 2026
G
Verified Purchase
GracieMarie
Lake Worth, US
★★★★★ 5
A Toy Ball for All Seasons!
Style: Small Ball, Size: 1 Count, Style: Small Ball, Size: 1 Count
Oh my gosh! I’m so happy to find the almost exact ball my 5 1/2 pound 9 month old Morkie, Charlie, that mommy lost at the campgrounds! It was his favorite toy and although he has others, he loved this one above all others, so to find another one was an answer to my prayers. The difference is so minor and in a good way. It is very durable as Charlie has very sharp teeth, but this one is just a bit softer making it easier to hang on to playing fetch. But for Charlie, the size is the same, the squeekiness is the same, the color is the same (yes they can see some colors) and he went into a jumping frenzy when I took it out of the package and the price was unbelievably inexpensive for such a high quality toy! Thank you! Thank you! Thank you! Good mommy! ( I’m ordering another one as a back up, jic!)
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 15, 2026
G
Verified Purchase
GNosk
Battle Creek, US
★★★★★ 5
Great investment.
Style: Small Ball, Size: 2 Count
Dogs love them. Durable. Chew worthy for a beagle and a German shepherd. You cannot smell the flavor imparted but the pups definitely can. Always purchase the amount you need so each dog can have one. .
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 19, 2026
H
Verified Purchase
howdy
Alexandria, US
★★★★★ 5
Bacon and a Ball? Can life get any better?
Style: Small Ball, Size: 3 Count
Come on.. these balls are the best. They smell like bacon, yes, they really do. They are durable and squeak. Upon aggressive play, the squeak will die out but the ball will still be useable.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 25, 2026
S
Verified Purchase
shaa255
Battle Creek, US
★★★★★ 5
She LOVES this ball
Style: Small Ball, Size: 1 Count
Our dog likes toys, but this ball is now her favorite ball. She even took it to bed with her last night. Our dog is 65 pounds, but she likes smaller toys so I ordered the small ball. It’s a good size. It’s nice and soft and squeaks. She seems to kills the squeaker right away, but she didn’t with this ball. It seems to be the least amount of money I’ve spent on a toy for her and it’s her favorite. I ordered another one just to have on hand. This toy is a great bargain!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 22, 2026

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