Engine Control Module (ECM) Wiring Harness

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  Holley EFI

  Holley EFI for use with Terminator X and X MAX ECU's - 4 Inputs / 4 Outputs 558-462

  Sale Price $42.10 Regular Price $47.36
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  Holley EFI

  Holley EFI Gen V LT Engine Main Harness, For Terminator X/X Max | 558-129

  Sale Price $611.95 Regular Price $688.95
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  Holley Sniper EFI

  Holley Sniper EFI Sniper 1 to Sniper 2 Adapter Harness | 558-489

  Sale Price $59.79 Regular Price $67.95
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  Holley Sniper EFI

  Holley Sniper EFI Sniper 2 Main Harness with Fuel Pump Relay | 558-191

  Sale Price $225.95 Regular Price $254.95
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  Holley Sniper EFI

  Holley Sniper EFI Main Battery Harness, Fuse and Fuel Pump Relay | 558-490

  Sale Price $174.95 Regular Price $196.95
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  FAST

  FAST Engine Control Module (ECM) Wiring Harness 6000-6717

  Regular Price $34.95
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  Holley EFI

  Holley Terminator X LT4 Main Engine Harness, V3 Software Required | 558-130

  Sale Price $611.95 Regular Price $688.95
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  Holley EFI

  Holley Main Power Harness, For Coyote Ti-VCT Applications | 558-319

  Sale Price $64.35 Regular Price $72.95
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  Holley EFI

  Holley Terminator Main Harness, For 550-405 & 550-406 4150 TBI EFI Kits | 558-414

  Sale Price $531.95 Regular Price $598.95
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  Holley EFI

  Holley Terminator EFI Input/Output Kit, 4 Extra Input Wires + 1 Output Wire | 558-420

  Sale Price $56.25 Regular Price $63.95
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  Holley EFI

  Holley Sniper EFI Main Wiring Harness, Includes Fuel Pump Relay & Coil Input Wire | 558-490

  Sale Price $151.95 Regular Price $169.00