Availability
Engine Management Systems
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-550-917-6
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Fuel Injection Engine Management System, Pro-Flo 4, Self-Learning, Sequential Multi-Port, With Tablet, LS Gen IV 58X, Engine Swap, Kit
Part Number: EDL-35712
Estimated Ship Date: Mar 23, 2026 if ordered today
Estimated Ship Date: Mar 23, 2026 if ordered today
Engine Management Systems, HP EFI, ECU and Harness, Up to 16-Injectors, 8-Coils, Four Digital Inputs, for GM TPI, Holley Stealth Ram, Kit
Part Number: HLY-550-601
Estimated Ship Date: Today
Estimated Ship Date: Today
Engine Management Systems, Elite 1500 ECU, Four Digital Inputs, Ten Analog Inputs, Each
Part Number: HTH-HT-150900
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Engine Management Systems, Terminator X, Up to 8-Injectors, 8-Coil, Analog, CANBUS, Sensors, USB Tuning Cable, Chevy, 4.8-6.2L, 4x Cam, 58x Crank, Kit
Part Number: HLY-550-910T
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Engine Management System, 5.0L Crate Engine Control Pack, Ford, 5.0L, Kit
Part Number: FMS-M6017A504VB
Estimated Ship Date: Today
Estimated Ship Date: Today
Engine Management Systems, Terminator X MAX, 8-EV1 Injectors, 8-Coils, Plug-and-Play, Drive-by-Wire, Tuner/Trans Control, 4R70W, Ford, 4.6L, 5.4L, Kit
Part Number: HLY-550-1316
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Engine Management Systems, Terminator X MAX, 8-Injectors, 8-Coils, Plug-and-Play, LT Drive-by-Wire, Chevy, Early LT, 5.3L, 6.2L, Kit
Part Number: HLY-550-1620
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Engine Management System, LT4, Wet and Dry Sump, Pre-Programed ECU, Harness,Sensors, Throttle Pedal, Fuel Pump Power Module, 8-Speed, 10-Speed, Kit
Part Number: NAL-19433249
Not Yet Reviewed
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 16, 2026 if ordered today
Estimated Ship Date: Mar 16, 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 Management Systems, Dominator EFI, Connects 24-EV1 Injectors, 12-Coils, Analog/Digital inputs, 1x Cam Sensor, Chevy, 5.7L, 6.0L, 24x Crank, Kit
Part Number: HLY-550-656
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 System, CORE ECU, Transmission Control, 4L60E, 4L80E, 58x/24x Compatible, Chevy, Small Block LS, Each
Part Number: HPT-COR-ECU-000
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Engine Management Systems, Elite 2500 ECU, Four Digital Inputs, Ten Analog Inputs, Each
Part Number: HTH-HT-151300
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Engine Management Systems, HP EFI, ECU and Harness, Up to 16-Injectors, 8-Coils, Four Digital Inputs, NKT O2, GM, LS2, LS7, 58x Crank Sensor, Kit
Part Number: HLY-550-603N
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 MAX, 8-EV1 Injectors, 8-Coils, Plug-and-Play, Drive-by-Wire, Tuner/Trans Control, 4R70W, Ford, 4.6L, 5.4L, Kit
Part Number: HLY-550-1318
Estimated Ship Date: Today
Estimated Ship Date: Today
Engine Management Systems, Terminator X MAX, 8-EV6 Injectors, 8-Coils, Drive-by-Wire, 3.5 in. Controller, Chrysler, Dodge, 5.7-6.4L, Non-VVT, Kit
Part Number: HLY-550-1423
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Engine Management Systems, Terminator X MAX, Universal, 8-EV1 Injectors, 8-Coils, GM Drive-by-Wire, Tuner/Trans Control, Domestic, Pushrod Engine, Kit
Part Number: HLY-550-950
Not Yet Reviewed
Estimated Ship Date: Mar 16, 2026 if ordered today
Estimated Ship Date: Mar 16, 2026 if ordered today
Engine Management Systems, Terminator X, Up to 8-EV6 Injectors, 8-Coils, Analog Input, O2 Sensor, Plug-and-Play, 3.5 in. Controller, Ford, 5.0L, Kit
Part Number: HLY-550-1213
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Engine Management Systems, Terminator LS, Plug-andPlay, 8-Injectors, 8-Coils, Analog Inputs, with Controller, Chevy, Truck, 4.8-6.0L, 24x Crank, Kit
Part Number: HLY-550-614
Estimated Ship Date: Mar 16, 2026 if ordered today
Estimated Ship Date: Mar 16, 2026 if ordered today
Engine Management Systems, HP EFI, ECU and Harness, Up to 16-Injectors, 8-Coils, Four Digital Inputs, GM, LS2, LS7, 58x Crank Sensor, Kit
Part Number: HLY-550-603
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 Management Systems, Terminator X MAX, 8-EV6 Injectors, 8-Coils, Analog Input, USB Cable, Chevy, LS, 5,7L, 1x Cam, 24x Crank, Kit
Part Number: HLY-550-932T
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Engine Management Systems, Terminator X MAX, 8-EV6 Injectors, 8-Coils, O2 Sensor, Drive-by-Wire, Plug-and-Play, Ford, 5.0L, Kit
Part Number: HLY-550-1411
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
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