Availability
Engine Management Systems
Showing In Stock Items. Show All 38 Items.
Engine Management Systems, Terminator X MAX, 8-Injectors, 8-Coil, Sensors, Trans and Tuner Controller, Chevy, LS, 4.8-6.0L, 1x Cam, 24x Crank, Kit
Part Number: HLY-550-917
Estimated Ship Date: Today
Estimated Ship Date: Today
Engine Management Systems, Terminator X MAX, 8-EV6 Injectors, 8-Coil, Sensors, Trans and Tuner Controller, Chevy, LS, 4.8-6.2L, 4x Cam, 58x Crank, Kit
Part Number: HLY-550-918
Estimated Ship Date: Today
Estimated Ship Date: Today
Engine Management Systems, Terminator X MAX, 8-EV6 Injectors, 8-Coil, Sensors, Trans and Tuner Controller, Chevy, LS, 5.7L, 1x Cam, 24x Crank, Kit
Part Number: HLY-550-919
Estimated Ship Date: Today
Estimated Ship Date: Today
Engine Management Systems, Terminator X MAX, 8-EV1 Injectors, 8-Coils, Sensors, Trans and Tuner Controller, Chevy, LS, 5.7L, 1x Cam, 24x Crank, Kit
Part Number: HLY-550-916
Estimated Ship Date: Today
Estimated Ship Date: Today
Engine Management Systems, Terminator X MAX, Up to 8-EV1 Injectors and 8-Coils, Analog, Trans and Tuner Controls, GM 4L60-E, 4L80-E, Wire Harness, Kit
Part Number: HLY-550-942
Estimated Ship Date: Today
Estimated Ship Date: Today
Engine Management Systems, HP EFI, ECU, Replacement, Plug-and-Play, 16-Injectors, Eight Coils, Analog Inputs, USB Cable, Software, Each
Part Number: HLY-554-113
Estimated Ship Date: Today
Estimated Ship Date: Today
Engine Management Systems, Terminator X MAX, 8-EV1 Injectors, 8-Coil, Sensors, Trans and Tuner Controller, Chevy, LS, 4.8-6.2L, 4x Cam, 58x Crank, Kit
Part Number: HLY-550-920
Estimated Ship Date: Today
Estimated Ship Date: Today
Engine Management Systems, Terminator X MAX, 8-EV6 Injectors, 8-Coils, Trans Control, Sensors, USB Cable, Chevy, LS, 5.7L, 1x Cam, 24x Crank, Kit
Part Number: HLY-550-919T
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Engine Management Systems, Terminator X, Up to 8-EV6 Injectors, 8-Coils, Analog, O2 Sensor, Plug-and-Play, 3.5 in. Controller, Ford, 4.6L, 5.4L, Kit
Part Number: HLY-550-1219
Estimated Ship Date: Today
Estimated Ship Date: Today
Engine Management Systems, Terminator X MAX, 8-EV1 Injectors, 8-Coils, Analog, Trans and Tuner Controls, Ford Injector Spacing, 4R70W Harness, Kit
Part Number: HLY-550-943
Estimated Ship Date: Mar 20, 2026 if ordered today
Estimated Ship Date: Mar 20, 2026 if ordered today
Engine Management Systems, Terminator X MAX, 8-EV1 Injectors, 8-Coils, Analog, Trans and Tuner Controls, Ford Injector Spacing, 4R70W Harness, Kit
Part Number: HLY-550-944
Estimated Ship Date: Today
Estimated Ship Date: Today
Engine Management Systems, Terminator X, Up to 8-EV1 Injectors, 8-Coils, Analog, O2 Sensor, Plug-and-Play, 3.5 in. Controller, Ford, 4.6L, 5.4L, Kit
Part Number: HLY-550-1218
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Engine Management Systems, Terminator X MAX, 8-EV6 Injectors, 8-Coil, Trans Control, Sensors, USB Cable, Chevy, LS, 4.8-6.2L, 4x Cam, 58x Crank, Kit
Part Number: HLY-550-918T
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Engine Management Systems, Terminator X, Up to 8-EV6 Injectors, 8-Coil, Analog, O2 Sensor, Plug-and-Play, Controller, Dodge, Chrysler, 5.7L, 6.1L, Kit
Part Number: HLY-550-1223
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
EZ-EFI 2.0 Self Tuning Engine Control System - Multi-Port Retro-Fit Type, Kit
Part Number: FST-30404-KIT
Estimated Ship Date: Today
Estimated Ship Date: Today
Engine Management Systems, Terminator X, Up to 8-EV6 Injectors, 8-Coil, O2 Sensor, Plug-and-Play, Tuner, Controller, Dodge, Chrysler, 5.7-6.4L, Kit
Part Number: HLY-550-1225
Not Yet Reviewed
Estimated Ship Date: Mar 20, 2026 if ordered today
Estimated Ship Date: Mar 20, 2026 if ordered today
Need It Sooner? We recommend these similar substitute parts:
Holley Terminator X MAX Engine Management Systems 550-1423
Not Yet Reviewed
Estimated Ship Date: Today
Engine Control Unit, FAST XFI 2.0, Kit
Part Number: FST-301000
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Engine Management Systems, Terminator X, Up to 8-EV1 Injectors, 8-Coil, Analog, O2 Sensor, Plug-and-Play, Controller, Dodge, Chrysler, 5.7-6.4L, Kit
Part Number: HLY-550-1224
Not Yet Reviewed
Estimated Ship Date: Mar 20, 2026 if ordered today
Estimated Ship Date: Mar 20, 2026 if ordered today
Engine Management Systems, Terminator X MAX, 8-Injectors, 8-Coil, Trans Control, Sensors, USB Tune Cable, Chevy, LS, 4.8-6.0L, 1x Cam, 24x Crank, Kit
Part Number: HLY-550-917T
Estimated Ship Date: Today
Estimated Ship Date: Today
Engine Management Systems, Terminator X MAX, 8-EV1 Injectors, 8-Coil, Trans Control, Sensors, USB Cable, Chevy, LS, 4.8-6.2L, 4x Cam, 58x Crank, Kit
Part Number: HLY-550-920T
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Engine Management Systems, Terminator X, Up to 8-EV6 Injectors, 8-Coils, Analog, O2 Sensor, Plug-and-Play, 3.5 in. Controller, Ford, 4.6L, 5.4L, Kit
Part Number: HLY-550-1217
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Engine Management Systems, Terminator X MAX, 8-EV1 Injectors, 8-Coils, Trans Control, Sensors, USB Tune Cable, Chevy, LS, 5.7L, 1x Cam, 24x Crank, Kit
Part Number: HLY-550-916T
Estimated Ship Date: Today
Estimated Ship Date: Today
Engine Management Systems, Terminator X, Up to 8-EV1 Injectors, 8-Coils, Analog, O2 Sensor, Plug-and-Play, 3.5 in. Controller, Ford, 4.6L, 5.4L, Kit
Part Number: HLY-550-1216
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Engine Control System, XFI Sportsman EFI, ECU, Wiring Harness, Wide-band O2 Sensor, Kit
Part Number: FST-303000
Estimated Ship Date: Today
Estimated Ship Date: Today
Engine Management Systems, Terminator X, Up to 8-EV1 Injectors, 8-Coils, Analog, O2 Sensor, Plug-and-Play, USB Tuning Cable, Ford, 4.6L, 5.4L, Kit
Part Number: HLY-550-1220
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
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