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For use with Terminator X - Requires V3 Software
$662.95
$574.95
GVMR_558-130
Engine
Engine Control Module (ECM) Wiring Harness
Wire, Cable and Related Components
This harness is designed for use with Terminator X ECU's Only with V3 build 100 or later.
Holley EFI Gen V LT Engine Main Harness
$662.95
$574.95
GVMR_558-129
Engine
Engine Control Module (ECM) Wiring Harness
Wire, Cable and Related Components
This harness is designed for use with Terminator X and X Max ECU's Only.
Holley EFI Main Power Harness for Coyote Ti-VCT Applications
$69.95
$61.85
GVMR_558-319
Best Sellers
Engine
Engine Control Module (ECM) Wiring Harness
Wire, Cable and Related Components
Introducing Coyote Twin Independent Variable Cam Timing Control from Holley EFI. Unlock the full potential of your high revving power plant with the Holley...
Eliminates the need to rewire your existing Sniper EFI installation
$64.95
$56.09
FRCQ_558-489
Best Sellers
Engine
Engine Control Module (ECM) Wiring Harness
Wire, Cable and Related Components
Want to make the switch from the original Sniper EFI to Sniper 2 and don't want to rewire your system? This harness is designed...
Harness with Fuse and Fuel Pump Relay for Sniper 2 Throttle Body Systems
$245.95
$212.95
FRCQ_558-191
Engine
Engine Control Module (ECM) Wiring Harness
Wire, Cable and Related Components
This harness includes a switched 12V, battery+ and ground-, fuel pump relay, coil input wire, and HyperSpark distributor connector. The wiring is braided split...
Main Battery Harness with Fuse and Fuel Pump Relay
$192.45
$168.95
FRCQ_558-490
Engine
Engine Control Module (ECM) Wiring Harness
Wire, Cable and Related Components
This harness includes switched 12V power, battery positive and negative, fuel pump relay, coil input, and magnetic distributor input wires. Six feet of 3/8"...
Terminator Main Harness
$575.95
$499.95
GVMR_558-414
Engine
Engine Control Module (ECM) Wiring Harness
Wire, Cable and Related Components
Replacement main harness for Terminator EFI installations using 4 barrel throttle body fuel injection systems. This product was designed to be used specifically on...
Terminator EFI Input/Output Kit
$60.95
$52.69
GVMR_558-420
Best Sellers
Engine
Engine Control Module (ECM) Wiring Harness
Wire, Cable and Related Components
PN 558-420 contains 5 extra input/output wires that the base Terminator EFI harness does not contain. It contains Input wires for Inputs 1-4. It...
