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Trending Now Holley Efi Terminator X Max Stealth 4150 - Gm Ls Engines 550-1063 - Going Fast [otRuNDhV]

$109.99 $351.99 -69%

Holley EFI Terminator X Max Stealth 4150 The Holley EFI Terminator X Max Stealth 4150 is a cutting-edge engine management system designed for GM LS engines, offering a seamless and powerful performance upgrade. This state-of-the-art system boasts a h

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Trending Now Holley Efi Terminator X Max Stealth 4150 - Gm Ls Engines 550-1063 - Going Fast [otRuNDhV]

Holley EFI Terminator X Max Stealth 4150

The Holley EFI Terminator X Max Stealth 4150 is a cutting-edge engine management system designed for GM LS engines, offering a seamless and powerful performance upgrade. This state-of-the-art system boasts a host of features, including support for up to 650 HP with Four 100lb./hr. Injectors, plug-and-play Transmission control for GM Transmissions, and a sleek, stealth installation design. With its internal 1bar MAP sensor and all wiring hidden below the fuel injector bowls, the Terminator X Max Stealth 4150 delivers ultimate performance without compromising aesthetics.
  • Supports up to 650HP with Four 100lb./hr. Injectors
  • Plug and play Transmission control for GM Transmissions

Technical Specifications and Details

The Holley EFI Terminator X Max Stealth 4150 is engineered with precision and includes a range of technical specifications that make it a standout choice for high-performance engines. It features an integrated ignition timing control, allowing for easy installation with factory LS coil sub harness and OEM LS coils, eliminating the need for external boxes or modules. The system is equipped with a high-resolution full-color touchscreen for initial setup, tuning, and gauge displays, as well as a simple calibration wizard that requires no laptop for operation. The Terminator X Max Stealth 4150 also offers a self-tuning ECU, making it accessible to enthusiasts without extensive computer or tuning expertise.
  • Integrated ignition timing control
  • High-resolution full-color touchscreen
  • Simple calibration wizard

Applications and Benefits

The Holley EFI Terminator X Max Stealth 4150 is an ideal choice for drivers seeking to enhance the performance and efficiency of their GM LS engines. Whether for racing, street performance, or daily driving, this system delivers the power and control you need. Its compatibility with Holley EFI digital dashes, gauges, and fuel system accessories ensures a seamless integration with your vehicle's existing setup. With its self-tuning capabilities and user-tuneable features, the Terminator X Max Stealth 4150 empowers enthusiasts to fine-tune their engine performance to their specific needs.
  • Seamless integration with Holley EFI accessories
  • Self-tuning capabilities for easy customization

What Our Customers Say

January 20, 2026

Absolutely no complaints!

It's a fantastic, truly solid product.

- Journi V..

January 20, 2026

Absolutely no complaints!

It works perfectly. I am so happy.

- Emilio F..

January 20, 2026

Absolutely no complaints!

Wonderful! I am so very happy.

- Allison W..

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