Holley Sniper EFI Eliminates the need to rewire your existing Sniper EFI installation
$67.95
$59.79
FRCQ_558-489
Engine
Engine Control Module (ECM) Wiring Harness
New Arrivals
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...
Holley Sniper EFI Harness with Fuse and Fuel Pump Relay for Sniper 2 Throttle Body Systems
$254.95
$225.95
FRCQ_558-191
Engine
Engine Control Module (ECM) Wiring Harness
New Arrivals
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...
Holley EFI Terminator EFI Input/Output Kit
$63.95
$50.63
GVMR_558-420
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...
