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Holley EFI Terminator X MAX Stealth 4150 (Max 600HP forced Induction support)




Collections: Holley EFI

Product type:

Vendor: Alpha Motorsports, Inc.




Don't settle for less, maintain control of your transmission with race winning technology! This Alpha approved high quality kit will surely take you to the next level at a budget friendly price.

This kit features 4, 100Lb/HR Fuel Injectors capable of supporting up to 650 HP Naturally Aspirated on 600HP on Forced induction applications. The Terminator X fuel map self-learning and ignition timing control, improves idle stability, drivability and provides wide -open throttle horsepower! Use the Terminator X MAX Stealth 4150 kits for transmission control on pre-2009 GM 4L60E/4L80E Transmissions (Parts 550-1011, 550-1012, 550-1013). 

Use the Terminator X Stealth 4150 kits to knock down transmission provisions for GM TH350/400, 200R4/700R4, and Ford C4/C6 applications. 


  • Bolt on 4150 Flange Carburetor Replacement
  • Supports up to 650HP with Four 100lb/hr Injectors
  • Terminator X Max Stealth 4150 kits provide transmission control for Pre-2009 GM 4L60E/4L80E Transmissions (Part numbers 550-1011, 550-1012,550-1013)
  • Internal 1bar MAP sensor, built into the Terminator X ECU.
  • All of the wiring exits below the rear fuel injector cover, for a completely stealth installation
  • Timed spark part for vacuum advanced distributors located under the front fuel bowl, for easy access to the distributor
  • Air entry is 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 Holley part # 12-886
  • Integrated ignition timing control improves idle stability, fuel economy, and wide open throttle performance
  • 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
  • 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