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Home Miscellaneous Ignition Holley EFI Ignition Harness 558-127
Special Order
Holley EFI Ignition Harness 558-127
Holley EFI Ignition Harness 558-127
Holley EFI Ignition Harness 558-127
Holley EFI Ignition Harness 558-127
Holley EFI Ignition Harness 558-127
Holley EFI Ignition Harness 558-127
Holley EFI Ignition Harness 558-127
Holley EFI Ignition Harness 558-127
  1. Holley EFI Ignition Harness 558-127
  2. Holley EFI Ignition Harness 558-127
  3. Holley EFI Ignition Harness 558-127
  4. Holley EFI Ignition Harness 558-127
  5. Holley EFI Ignition Harness 558-127
  6. Holley EFI Ignition Harness 558-127
  7. Holley EFI Ignition Harness 558-127
  8. Holley EFI Ignition Harness 558-127

Holley EFI Ignition Harness 558-127

HOL558-127
OUT OF STOCK, Please contact us for availability BEFORE ordering. This is a SPECIAL ORDER part. This item can be brought in either with a stock order or on it’s own. Contact us today to discuss available options.

$264.23

Holley EFI Ignition Harness

558-127

BENCHTOP EFI HARNESS;bench harness; bench top harness; dominator test harness; ecu test harness; hp test harnes; terminator x test harness; efi test harness; bench; ecu bench harness; dominator bench harness; hp bench harness; terminator x bench harness; ecu bench harness;;Holley EFI Benchtop Harness;Test Harness for Firmware Updating, Dash Configuration, and ECU Testing.;Designed for benchtop testing and setup of HP, Dominator, Terminator X, Terminator X Max, and Sniper ECU's, as well as 7" dashes. Great for ECU diagnostics, firmware updating, or pre-configuring dash layouts without being in the vehicle. Harness has pre-terminated connectors for the following sensor inputs: CAN, Crank, Cam, TPS, Input #1, P1A, Main Power, and Sniper EFI connectors for a Sniper main harness. Also includes a power switch for quick setup in your workspace. Power and Ground flying leads need to be connected to your battery or power supply. (Not included);Terminated connectors for several EFI inputs;Included power switch allows for a quick “install” on your test bench;Great for ECU diagnostics that do not require a running engine, firmware updates, or 7” dash calibrations

Fast Efficient Shipping

Through our distribution network Deliveries can be as fast as Next Day Delivery.
Delivery times vary by destination, tracking information is provided with every purchase.

Get it Installed

JB's Power Centre offers on-site professional installation services in Calgary and Edmonton, AB.
We have on staff licensed Mechanical Technicians as well as MECP Certified 12-Volt Technicians.

* Extend your products Manufacturer Warranty

All products include a manufacturer warranty, but you can extend this warranty with
JB's Purchase Protection Plan
*Available on select products.