Holley EFI Terminator X Stealth 4150 EFI System — Fits GM 58X LS Engines

SKU: GVMR_550-1061
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About Holley EFI Holley EFI engineers high-quality automotive parts and ...Read More

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Sale price$2,299.95
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Car Wheel Size Chart

Wheel Diameter (inches) Tire Width (mm) Aspect Ratio Rim Width (inches)
14185655.5
15195606.0
16205556.5
17215507.0
18225457.5
19235408.0
20245358.5

Note: Wheel and tire sizes vary by car make and model. Always consult your vehicle’s manufacturer for exact specifications.

How to Read Tire Size

Example: 225/45R17 means:

  • 225 = Tire width in mm
  • 45 = Aspect ratio (height as % of width)
  • R17 = Rim diameter in inches

Product Details

Product Description
Part Numbers
Sizing & Fit

About Holley EFI

Holley EFI engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full Holley EFI lineup with fast shipping and expert fitment support — order with confidence.

Watch in action

Modern Fuel Injection for Classic Looks

The Holley EFI Terminator X Stealth 4150 EFI system is designed to provide the ultimate blend of modern electronic fuel injection technology and a classic carburetor appearance. Specifically engineered for GM 58X LS-series engines, this system replaces your traditional carburetor with a high-performance throttle body that looks right at home in any engine bay. Experience the ease of self-tuning and the reliability of digital fuel management without sacrificing the aesthetic of your build.

Advanced Features for LS Performance

  • Throttle Body: 4150 Square Bore design
  • Compatibility: Specifically for GM 58X LS engines
  • Finish: Sleek black aluminum for a stealthy look
  • Control: Integrated Terminator X ECU for precise tuning
  • Self-Learning: Advanced software handles fuel mapping automatically

This kit includes everything you need to transition your LS engine to a sophisticated EFI platform. The Terminator X ECU offers comprehensive control over ignition timing and fuel delivery, resulting in improved cold starts, smoother idle, and increased throttle response. Whether you are cruising on the street or pushing limits at the track, this system adapts to your driving style. Installation is streamlined, allowing you to spend less time in the garage and more time on the road. Experience the power and precision of Holley EFI technology today. Find your next performance upgrade at GGCRACING.

Product Details

Product Description
Part Numbers
Sizing & Fit

About Holley EFI

Holley EFI engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full Holley EFI lineup with fast shipping and expert fitment support — order with confidence.

Watch in action

Modern Fuel Injection for Classic Looks

The Holley EFI Terminator X Stealth 4150 EFI system is designed to provide the ultimate blend of modern electronic fuel injection technology and a classic carburetor appearance. Specifically engineered for GM 58X LS-series engines, this system replaces your traditional carburetor with a high-performance throttle body that looks right at home in any engine bay. Experience the ease of self-tuning and the reliability of digital fuel management without sacrificing the aesthetic of your build.

Advanced Features for LS Performance

  • Throttle Body: 4150 Square Bore design
  • Compatibility: Specifically for GM 58X LS engines
  • Finish: Sleek black aluminum for a stealthy look
  • Control: Integrated Terminator X ECU for precise tuning
  • Self-Learning: Advanced software handles fuel mapping automatically

This kit includes everything you need to transition your LS engine to a sophisticated EFI platform. The Terminator X ECU offers comprehensive control over ignition timing and fuel delivery, resulting in improved cold starts, smoother idle, and increased throttle response. Whether you are cruising on the street or pushing limits at the track, this system adapts to your driving style. Installation is streamlined, allowing you to spend less time in the garage and more time on the road. Experience the power and precision of Holley EFI technology today. Find your next performance upgrade at GGCRACING.

Product Details

Product Description

About Holley EFI

Holley EFI engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full Holley EFI lineup with fast shipping and expert fitment support — order with confidence.

Watch in action

Modern Fuel Injection for Classic Looks

The Holley EFI Terminator X Stealth 4150 EFI system is designed to provide the ultimate blend of modern electronic fuel injection technology and a classic carburetor appearance. Specifically engineered for GM 58X LS-series engines, this system replaces your traditional carburetor with a high-performance throttle body that looks right at home in any engine bay. Experience the ease of self-tuning and the reliability of digital fuel management without sacrificing the aesthetic of your build.

Advanced Features for LS Performance

  • Throttle Body: 4150 Square Bore design
  • Compatibility: Specifically for GM 58X LS engines
  • Finish: Sleek black aluminum for a stealthy look
  • Control: Integrated Terminator X ECU for precise tuning
  • Self-Learning: Advanced software handles fuel mapping automatically

This kit includes everything you need to transition your LS engine to a sophisticated EFI platform. The Terminator X ECU offers comprehensive control over ignition timing and fuel delivery, resulting in improved cold starts, smoother idle, and increased throttle response. Whether you are cruising on the street or pushing limits at the track, this system adapts to your driving style. Installation is streamlined, allowing you to spend less time in the garage and more time on the road. Experience the power and precision of Holley EFI technology today. Find your next performance upgrade at GGCRACING.

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