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LSx Holley EFI System Builder

Holley EFI Custom EFI System Builders

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LSx Holley EFI System Builder

This kit comes with the following parts standard.  Options and additional upgrades can be selected below:

  • HP ECU
  • 24x or 58x main harness
  • Power harness
  • Injector harness with evenly spaced minitimer connectors
  • 2.5bar LS9 Map sensor
  • NTK oxygen sensor
  • MAT Sensor
  • 100psi fuel and oil pressure sensor
  • Holley 160 lb/hr injectors

For additional options or a quote on a custom kit call us at 231-747-7520 or email us here.

Choose ECU:
Main harness:
Injector Options:
MAP Sensor Options:
Smart Coil upgrade:
Digital Dash options:


Part #: 25348

Price: $3,198.51

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