Filters
Holley EFI 558-404
Dominator EFI Auxiliary Harness; Dominator EFI Connector J4 Auxiliary Harness
Holley EFI 558-406
Holley EFI GM Drive-By-Wire Harness; For Dominator and Terminator X Max
Holley EFI 558-420
Terminator EFI Input/Output Kit; This kit contains 4 extra input wires and 1 extra output wire that the base Terminator EFI harness does not contain.
Holley EFI 558-429
Holley EFI GM Drive-By-Wire Harness - Early Truck; Drive-By-Wire Harness - Early Truck
Holley EFI 550-601
HP EFI ECU & Harness Kits; GM TPI and Holley Stealth Ram™, Includes Bosch Oxygen Sensor
Holley EFI 550-601N
HP EFI ECU & Harness Kits; GM TPI and Holley Stealth Ram™, Includes NTK Oxygen Sensor
Holley EFI 550-602
HP EFI ECU & Harness Kits; GM LS1/LS6 (24x crank sensor) with Jetronic/Minitimer (Bosch type) connectors on injector harness, Includes Bosch Oxygen Sensor
Holley EFI 550-602N
HP EFI ECU & Harness Kits; GM LS1/LS6 (24x crank sensor) with Jetronic/Minitimer (Bosch type) connectors on injector harness, Includes NTK Oxygen Sensor
Holley EFI 550-603
HP EFI ECU & Harness Kits; GM LS2/3/7 (58x crank sensor) with USCAR (EV6 Style) connectors on injector harness, Includes Bosch Oxygen Sensor
Holley EFI 550-603N
HP EFI ECU & Harness Kits; GM LS2/3/7 (58x crank sensor) with USCAR (EV6 Style) connectors on injector harness, Includes NTK Oxygen Sensor
Holley EFI 550-604
HP EFI ECU & Harness Kits; Universal V8 Multi-Point Fuel Injection, Includes Bosch Oxygen Sensor