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Four Channel Coil Driver Module

Used to drive a two wire “dumb” ignition coil. Great for retrofitting an engine to C-N-P.

PART# 554-112

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The four channel coil driver module is used to drive a two wire "dumb" ignition coil. Such coils are typically used on Ford Modular and late model Chrysler HEMI engines. Holley EFI ECUs require this coil driver module when running two wire "dumb" coils. Each module can drive four coils, so two are required for an eight cylinder engine that uses eight coils. Included is the coil driver module, an input harness with pins that can be connected directly into the HP or Dominator ECU, and an output harness with pigtail ends. The user must connect these to their specific coils.


  • Includes mating pigtails
  • Potted design allows installation in engine compartment
  • Drives two wire “Dumb Coils”
  • Four channel


BrandHolley EFI
Emission Code5
Product TypeHigh Current Driver - Module
Part Number554-112



This part is legal for sale or use on Emissions Controlled Vehicles, Uncontrolled (Non-Emissions Controlled) Vehicles, and Racing Use Only Vehicles because it does not affect vehicle emissions and is not covered by emissions regulations.

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