6 pin connector to mate with wideband O2 sensor p/n 554-155.
Holley For Terminator X Wideband Wiring Harness Adapter EFI O2 Sensor Harness
Holley 558-463 Wideband Wiring Harness Adapter for Terminator X
CAN Bus Y-splitter (48") for Holley - Sniper - Terminator X - Dominator 558-465
CAN Bus Y-splitter (6") for Holley EFI - Terminator X - Dominator 558-465
Holley Control Module Wiring Harness 558-463; Terminator X
558-465 CAN Bus Y-splitter Fit For Holley EFI Sniper Terminator X Dominator US