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Hot Sale Holley Efi Terminator X Stealth Gm Ls 4150 - Black 550-1061 Now 80% Cheaper [nuHeik8s]

$89.99 $287.99 -69%

Holley EFI Terminator X Stealth GM LS 4150 Experience the power of the Terminator X Stealth 4150 Kit by Holley EFI, designed for either 24x or 58x LS engines. This advanced EFI system is engineered to support up to 650 HP, thanks to its robust 58X cr

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Holley EFI Terminator X Stealth GM LS 4150

Experience the power of the Terminator X Stealth 4150 Kit by Holley EFI, designed for either 24x or 58x LS engines. This advanced EFI system is engineered to support up to 650 HP, thanks to its robust 58X crank and four 100lb/hr injectors. The Terminator X Max kits offer a seamless plug-and-play transmission control for GM transmissions, ensuring compatibility and ease of installation. Key features include: an internal 1bar MAP sensor, a stealth installation with wiring below the fuel injector bowls, and an OEM-style TPS/IAC for reliable performance.

Features and Specifications

The Holley EFI Terminator X Stealth 4150 Kit is a high-performance solution for LS engine owners. Notable features:
  • Integrated ignition timing control with plug-and-play compatibility for factory LS coil sub harness and OEM LS coils.
  • A high-resolution full-color touchscreen for initial setup, tuning, and gauge displays, eliminating the need for a laptop.
  • A simple calibration wizard that creates the base map and starts tuning automatically.
The system is equipped with a Genuine Bosch LSU 4.9 Wideband Oxygen Sensor for real-time fuel map learning and features 4 inputs and 4 outputs for additional control options. Technical specifications: 950 CFM, 58.5 PSI fuel pressure, and compatibility with Holley EFI digital dashes and accessories.

Applications and Benefits

The Holley EFI Terminator X Stealth 4150 Kit is a versatile upgrade for any GM LS engine application. Its self-tuning ECU allows for easy installation and tuning, making it accessible to both DIY enthusiasts and professional tuners. Practical uses include:
  • Boost control and knock retard support for optimized engine performance.
  • Multi-stage and progressive nitrous control for enhanced power output.
  • Forced induction support for engines equipped with turbochargers or superchargers.
With its sleek black finish and gold accents, the Terminator X Stealth 4150 Kit not only looks great but also offers unmatched performance and reliability.

What Our Customers Say

December 31, 2025

Absolutely no complaints!

Looks even better than in the photos.

- Kenzie G..

December 31, 2025

Absolutely no complaints!

Exceeded my hopes in every way.

- Asher C..

December 31, 2025

Absolutely no complaints!

A great price for such a great product.

- Gianni P..

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