Holley EFI Terminator X Max MPFI Kit — LS Early Truck w/ Transmission Control (24x Reluctor)

SKU: GVMR_550-917
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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

Unleash Peak Performance with the Holley EFI Terminator X Max MPFI Kit for LS Early Trucks

For enthusiasts performing an LS swap into an early model truck, or upgrading an existing LS engine, the Holley EFI Terminator X Max Multi-Port Fuel Injection (MPFI) Kit (MPN: 550-917) is the ultimate solution. This advanced engine control module (ECM) provides comprehensive engine and transmission management in a single, powerful package. Specifically designed for GM LS-Series engines utilizing a 24x reluctor wheel, this kit ensures seamless integration and unparalleled control for your early truck application.

Integrated Engine & Transmission Control:

  • Complete LS Swap Solution: Provides full control for 24x reluctor GM LS-Series engines in early truck chassis.
  • Integrated Transmission Control: Manages automatic transmissions, ensuring optimal shift points and performance.
  • 3.5-inch Touchscreen: Intuitive interface for real-time monitoring, tuning, and diagnostics without a laptop.
  • Comprehensive Wiring Harness: High-quality, clearly labeled harness simplifies installation and ensures reliable connections.
  • Self-Learning Capability: Adapts to your engine's specific needs, optimizing fuel and spark for peak efficiency and power.
  • Durable & Reliable: Engineered for the demanding environment of performance automotive applications.

Technical Specifications:

  • System Type: Terminator X Max Multi-Port Fuel Injection (MPFI)
  • Engine Compatibility: GM LS-Series (Early Truck Applications)
  • Reluctor Wheel Compatibility: 24x
  • Display: 3.5-inch Handheld Touchscreen
  • Included Components: ECU, Wiring Harness, Sensors, Touchscreen Display
  • Transmission Control: Integrated (for compatible automatic transmissions)
  • Part Number: Holley EFI 550-917

The Holley EFI Terminator X Max MPFI Kit for LS Early Trucks is more than just an ECU; it's a complete performance ecosystem. Experience the benefits of modern engine management, from improved throttle response and horsepower to enhanced fuel economy and drivability. Elevate your LS-powered early truck to its full potential with this expert-level kit, available 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

Unleash Peak Performance with the Holley EFI Terminator X Max MPFI Kit for LS Early Trucks

For enthusiasts performing an LS swap into an early model truck, or upgrading an existing LS engine, the Holley EFI Terminator X Max Multi-Port Fuel Injection (MPFI) Kit (MPN: 550-917) is the ultimate solution. This advanced engine control module (ECM) provides comprehensive engine and transmission management in a single, powerful package. Specifically designed for GM LS-Series engines utilizing a 24x reluctor wheel, this kit ensures seamless integration and unparalleled control for your early truck application.

Integrated Engine & Transmission Control:

  • Complete LS Swap Solution: Provides full control for 24x reluctor GM LS-Series engines in early truck chassis.
  • Integrated Transmission Control: Manages automatic transmissions, ensuring optimal shift points and performance.
  • 3.5-inch Touchscreen: Intuitive interface for real-time monitoring, tuning, and diagnostics without a laptop.
  • Comprehensive Wiring Harness: High-quality, clearly labeled harness simplifies installation and ensures reliable connections.
  • Self-Learning Capability: Adapts to your engine's specific needs, optimizing fuel and spark for peak efficiency and power.
  • Durable & Reliable: Engineered for the demanding environment of performance automotive applications.

Technical Specifications:

  • System Type: Terminator X Max Multi-Port Fuel Injection (MPFI)
  • Engine Compatibility: GM LS-Series (Early Truck Applications)
  • Reluctor Wheel Compatibility: 24x
  • Display: 3.5-inch Handheld Touchscreen
  • Included Components: ECU, Wiring Harness, Sensors, Touchscreen Display
  • Transmission Control: Integrated (for compatible automatic transmissions)
  • Part Number: Holley EFI 550-917

The Holley EFI Terminator X Max MPFI Kit for LS Early Trucks is more than just an ECU; it's a complete performance ecosystem. Experience the benefits of modern engine management, from improved throttle response and horsepower to enhanced fuel economy and drivability. Elevate your LS-powered early truck to its full potential with this expert-level kit, available 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

Unleash Peak Performance with the Holley EFI Terminator X Max MPFI Kit for LS Early Trucks

For enthusiasts performing an LS swap into an early model truck, or upgrading an existing LS engine, the Holley EFI Terminator X Max Multi-Port Fuel Injection (MPFI) Kit (MPN: 550-917) is the ultimate solution. This advanced engine control module (ECM) provides comprehensive engine and transmission management in a single, powerful package. Specifically designed for GM LS-Series engines utilizing a 24x reluctor wheel, this kit ensures seamless integration and unparalleled control for your early truck application.

Integrated Engine & Transmission Control:

  • Complete LS Swap Solution: Provides full control for 24x reluctor GM LS-Series engines in early truck chassis.
  • Integrated Transmission Control: Manages automatic transmissions, ensuring optimal shift points and performance.
  • 3.5-inch Touchscreen: Intuitive interface for real-time monitoring, tuning, and diagnostics without a laptop.
  • Comprehensive Wiring Harness: High-quality, clearly labeled harness simplifies installation and ensures reliable connections.
  • Self-Learning Capability: Adapts to your engine's specific needs, optimizing fuel and spark for peak efficiency and power.
  • Durable & Reliable: Engineered for the demanding environment of performance automotive applications.

Technical Specifications:

  • System Type: Terminator X Max Multi-Port Fuel Injection (MPFI)
  • Engine Compatibility: GM LS-Series (Early Truck Applications)
  • Reluctor Wheel Compatibility: 24x
  • Display: 3.5-inch Handheld Touchscreen
  • Included Components: ECU, Wiring Harness, Sensors, Touchscreen Display
  • Transmission Control: Integrated (for compatible automatic transmissions)
  • Part Number: Holley EFI 550-917

The Holley EFI Terminator X Max MPFI Kit for LS Early Trucks is more than just an ECU; it's a complete performance ecosystem. Experience the benefits of modern engine management, from improved throttle response and horsepower to enhanced fuel economy and drivability. Elevate your LS-powered early truck to its full potential with this expert-level kit, available at GGCRACING.

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