SKU: 56974527351

EFI Terminator X Stealth GM LS 4150 - Shiny - 24X Crank - 4 Injectors - 650 HP

Sale price$1079.97 Regular price$1199.97
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Description

EFI Terminator X Stealth GM LS 4150 - Shiny - 24X Crank - 4 Injectors - 650 HPHolley EFI Terminator X Stealth GM LS 4150 Shiny Pre 2009 GM 4L60E 4L80E Transmission Control 1250 HP Overview The Terminator X Stealth 4150 1250HP EFI system from Holley features 8, 100LB HR Fuel Injectors capable of supporting up to 650 HP naturally aspirated or 1250 HP on forced induction applications. The Terminator X ECU is capable of fuel map self learning and ignition timing control, improving idle stability, drivability, and wide open throttle

Holley EFI Terminator X Stealth GM LS 4150 - Shiny

Pre-2009 GM 4L60E/4L80E Transmission Control - 1250 HP

Overview
The Terminator X Stealth 4150 1250HP EFI system from Holley features 8, 100LB/HR Fuel Injectors capable of supporting up to 650 HP naturally aspirated or 1250 HP on forced induction applications. The Terminator X ECU is capable of fuel map self-learning and ignition timing control, improving idle stability, drivability, and wide-open throttle horsepower! Did we mention that the Stealth 4150 also includes transmission kick down provisions for GM TH350/400, 200R4/700R4 and Ford C4/C6 applications? Terminator X Max Stealth 4150 kits provide transmission control for Pre-2009 GM 4L60E/4L80E Transmissions (Part numbers 550-1014, 550-1015, 550-1016)

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:
  • 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!
  • 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


Details:
  • Color: Shiny
  • Ignition Type: GM LS 24x
  • Injector Size: 100 lb/hr @ 58.5 PSI
  • Max Horsepower Rating: 650 Naturally Aspirated
  • Terminator LS Options: Fuel, Spark


Links
Instruction Sheet
Parts Guide
Addendum
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: 56974527351

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Mom of 2
Houston, US
★★★★★ 5
Fits Saros 10R perfect
Size: Mop Cloth-4
These are great! Fit perfect and might even be fluffier than originals.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 28, 2026
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GadgetGuy
Cuba, US
★★★★★ 5
OEM Roborock Cleaning Pads - Do not buy the knock offs.
Size: Mop Cloth-4
These are Roborock OEM pads for my 10R. I tried many of the cheap knock offs and they were terrible. These work great. Highly recommend.
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Reviewed in the United States on January 22, 2026
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philipzelinger
Louisville, US
★★★★★ 5
Better than OEM pads.
Size: Mop Cloth-5
Better than OEM pads.
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Reviewed in the United States on February 14, 2026
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A. Pedersen
Chelsea, US
★★★★★ 5
There’s a definite quality difference between the OEM product and third party knock-offs
Size: Mop Cloth-4
It’s worth getting replacement parts for your vacuum from the manufacturer. These pads are high quality. I purchased some third party ones and they fell apart after a week of use. It’s worth the extra money to have something that will last for many months when properly cared for.
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Reviewed in the United States on October 16, 2025
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Louis
Waukegan, US
★★★★★ 4
Overpriced but works
Size: Mop Cloth-4
Easy replacement, tear off and slap on. Can’t really go wrong. Fit is perfect. Floors started to get feel consistently again. I feel like this product is definitely overpriced for what it is.
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Reviewed in the United States on January 12, 2026

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