Holley EFI HP ECU & Harness MPFI System — NTK Wideband V8 Kit

SKU: GVMR_550-604N
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About Holley EFI Holley EFI engineers high-quality automotive parts and ...Read More

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Sale price$2,869.95
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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 with Holley EFI HP

Take full control of your V8 engine performance with the Holley EFI HP ECU & Harness Kit. Designed for enthusiasts who demand precision, this kit includes the advanced HP ECU and a comprehensive MPFI wiring harness. The integration of the NTK wideband oxygen sensor ensures real-time, accurate air/fuel ratio monitoring, allowing for superior tuning capabilities and engine safety under high-load conditions.

Key Features and Benefits

  • Advanced HP ECU: Powerful processing for complex fuel and ignition mapping.
  • NTK Sensor Included: Industry-leading wideband accuracy for precise tuning.
  • Plug-and-Play Harness: Simplified installation for V8 Multi-Port Fuel Injection setups.
  • Customizable Tuning: Fully programmable software to optimize your specific engine build.
  • Durable Construction: Built to withstand the rigors of high-performance racing environments.

Whether you are building a street machine or a dedicated track car, the Holley EFI HP system provides the flexibility and reliability required for maximum horsepower. This kit removes the guesswork from fuel injection management, providing a stable platform for your engine's specific needs. Experience the difference in throttle response and overall efficiency with this professional-grade controller. For all your high-performance electronic needs, trust the experts 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 with Holley EFI HP

Take full control of your V8 engine performance with the Holley EFI HP ECU & Harness Kit. Designed for enthusiasts who demand precision, this kit includes the advanced HP ECU and a comprehensive MPFI wiring harness. The integration of the NTK wideband oxygen sensor ensures real-time, accurate air/fuel ratio monitoring, allowing for superior tuning capabilities and engine safety under high-load conditions.

Key Features and Benefits

  • Advanced HP ECU: Powerful processing for complex fuel and ignition mapping.
  • NTK Sensor Included: Industry-leading wideband accuracy for precise tuning.
  • Plug-and-Play Harness: Simplified installation for V8 Multi-Port Fuel Injection setups.
  • Customizable Tuning: Fully programmable software to optimize your specific engine build.
  • Durable Construction: Built to withstand the rigors of high-performance racing environments.

Whether you are building a street machine or a dedicated track car, the Holley EFI HP system provides the flexibility and reliability required for maximum horsepower. This kit removes the guesswork from fuel injection management, providing a stable platform for your engine's specific needs. Experience the difference in throttle response and overall efficiency with this professional-grade controller. For all your high-performance electronic needs, trust the experts 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 with Holley EFI HP

Take full control of your V8 engine performance with the Holley EFI HP ECU & Harness Kit. Designed for enthusiasts who demand precision, this kit includes the advanced HP ECU and a comprehensive MPFI wiring harness. The integration of the NTK wideband oxygen sensor ensures real-time, accurate air/fuel ratio monitoring, allowing for superior tuning capabilities and engine safety under high-load conditions.

Key Features and Benefits

  • Advanced HP ECU: Powerful processing for complex fuel and ignition mapping.
  • NTK Sensor Included: Industry-leading wideband accuracy for precise tuning.
  • Plug-and-Play Harness: Simplified installation for V8 Multi-Port Fuel Injection setups.
  • Customizable Tuning: Fully programmable software to optimize your specific engine build.
  • Durable Construction: Built to withstand the rigors of high-performance racing environments.

Whether you are building a street machine or a dedicated track car, the Holley EFI HP system provides the flexibility and reliability required for maximum horsepower. This kit removes the guesswork from fuel injection management, providing a stable platform for your engine's specific needs. Experience the difference in throttle response and overall efficiency with this professional-grade controller. For all your high-performance electronic needs, trust the experts at GGCRACING.

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