Holley EFI Terminator X MPFI Kit GM LS2/LS3 58x w/Touchscreen — Fits GM LS-Series Engines

SKU: GVMR_550-905
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Sale price$1,499.95
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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

Precision Engine Management: Holley EFI Terminator X for LS2/LS3

Take command of your GM LS2 or LS3 engine with the Holley EFI Terminator X MPFI Kit. Designed specifically for 58x reluctor wheel applications, this system offers a robust and reliable way to manage your engine's fuel and ignition. The kit comes complete with a 3.5-inch touchscreen, allowing you to easily view engine data and modify tunes on the fly. It is the perfect solution for those looking to ditch the factory ECU in favor of a more capable, programmable system.

Technical Highlights

  • Designed for GM LS2/LS3 engines with 58x reluctor wheels
  • Includes 3.5-inch handheld touchscreen for easy interface
  • Advanced self-learning fuel management
  • Plug-and-play wiring harness for simplified setup
  • High-resolution data logging for performance tracking
  • Compact, durable ECU housing

The Terminator X system is renowned for its ease of use and powerful performance capabilities. By streamlining the tuning process, it allows you to spend more time driving and less time troubleshooting. The system's ability to handle custom fuel maps and ignition curves makes it a versatile choice for a wide range of engine builds. Whether you are running a stock engine or a mild performance setup, the Terminator X provides the stability and power you need. Experience professional-level engine management that fits your budget and your build. Find all your essential performance upgrades 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

Precision Engine Management: Holley EFI Terminator X for LS2/LS3

Take command of your GM LS2 or LS3 engine with the Holley EFI Terminator X MPFI Kit. Designed specifically for 58x reluctor wheel applications, this system offers a robust and reliable way to manage your engine's fuel and ignition. The kit comes complete with a 3.5-inch touchscreen, allowing you to easily view engine data and modify tunes on the fly. It is the perfect solution for those looking to ditch the factory ECU in favor of a more capable, programmable system.

Technical Highlights

  • Designed for GM LS2/LS3 engines with 58x reluctor wheels
  • Includes 3.5-inch handheld touchscreen for easy interface
  • Advanced self-learning fuel management
  • Plug-and-play wiring harness for simplified setup
  • High-resolution data logging for performance tracking
  • Compact, durable ECU housing

The Terminator X system is renowned for its ease of use and powerful performance capabilities. By streamlining the tuning process, it allows you to spend more time driving and less time troubleshooting. The system's ability to handle custom fuel maps and ignition curves makes it a versatile choice for a wide range of engine builds. Whether you are running a stock engine or a mild performance setup, the Terminator X provides the stability and power you need. Experience professional-level engine management that fits your budget and your build. Find all your essential performance upgrades 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

Precision Engine Management: Holley EFI Terminator X for LS2/LS3

Take command of your GM LS2 or LS3 engine with the Holley EFI Terminator X MPFI Kit. Designed specifically for 58x reluctor wheel applications, this system offers a robust and reliable way to manage your engine's fuel and ignition. The kit comes complete with a 3.5-inch touchscreen, allowing you to easily view engine data and modify tunes on the fly. It is the perfect solution for those looking to ditch the factory ECU in favor of a more capable, programmable system.

Technical Highlights

  • Designed for GM LS2/LS3 engines with 58x reluctor wheels
  • Includes 3.5-inch handheld touchscreen for easy interface
  • Advanced self-learning fuel management
  • Plug-and-play wiring harness for simplified setup
  • High-resolution data logging for performance tracking
  • Compact, durable ECU housing

The Terminator X system is renowned for its ease of use and powerful performance capabilities. By streamlining the tuning process, it allows you to spend more time driving and less time troubleshooting. The system's ability to handle custom fuel maps and ignition curves makes it a versatile choice for a wide range of engine builds. Whether you are running a stock engine or a mild performance setup, the Terminator X provides the stability and power you need. Experience professional-level engine management that fits your budget and your build. Find all your essential performance upgrades at GGCRACING.

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