Availability
Holley Parts and Accessories
Engine Management Systems, Terminator X MAX, Universal, 8-EV1 Injectors, 8-Coils, GM Drive-by-Wire, GM Trans Harness, Domestic, Pushrod Engine, Kit
Part Number: HLY-550-959
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Engine Management Systems, Terminator X MAX, 8-EV1 Injectors, 8-Coils, Trans Control, Analog, USB Cable, Chevy, LS, 4.8-6.2L, 4x Cam, 58x Crank, Kit
Part Number: HLY-550-935T
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 25, 2026 if ordered today
Estimated Ship Date: Mar 25, 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, 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 24, 2026 if ordered today
Estimated Ship Date: Mar 24, 2026 if ordered today
Engine Management Systems, Terminator X MAX, 8-EV1 Injectors, 8-Coils, Sensors, USB Tune Cable, Chevy, LS, 5.7L, 1x Cam, 24x Crank, Kit
Part Number: HLY-550-929T
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: 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
Fuel Injection System, Sniper 2, Self-Tuning, Throttle body, Polished, 4150 Flange, 650 hp Max, 800 CFM, Return Style Pump, PDM, Bluetooth, Kit
Part Number: SNE-550-510-BPR
Not Yet Reviewed
Estimated Ship Date: Mar 27, 2026 if ordered today
Estimated Ship Date: Mar 27, 2026 if ordered today
Fuel Injection System, Sniper 2, Self-Tuning, Throttle body, Black, 4150 Flange, 650 hp Max, 800 CFM, No Pump, PDM, Bluetooth, Ford, Kit
Part Number: SNE-550511BPXSBF
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Fuel Injection System, Sniper 2, Self-Tuning, Throttle body, Polished, 4150 Flange, 650 hp Max, 800 CFM, No Pump, PDM, Bluetooth, Chevy, Kit
Part Number: SNE-550510BPXSBC
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Fuel Injection Systems, Terminator X, Stealth 4150 EFI, Four Injectors, Throttle Body, Speed Density, Aluminum, Shiny, Tunable, Kit
Part Number: HLY-550-1001
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
Fuel Injection System, Sniper 2, Self-Tuning, Throttle body, Polished, 4150 Flange, 650 hp Max, 800 CFM, No Pump, PDM, Bluetooth, Ford, Kit
Part Number: SNE-550510BPXSBF
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Fuel Injection System, Sniper 2, Self-Tuning, Throttle body, Polished, 4150 Flange, 650 hp Max, 800 CFM, Inline Pump, PDM, 5 in. Display, Kit
Part Number: SNE-550-510-5PK
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Fuel Injection System, Sniper 2, Self-Tuning, Throttle body, Polished, 4150 Flange, 650 hp Max, 800 CFM, Inline Pump, PDM, Bluetooth, Kit
Part Number: SNE-550-510-BPK
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Fuel Injection System, Sniper 2, Self-Tuning, Throttle body, Black, 4150 Flange, 650 hp Max, 800 CFM, Return Style Pump, 3.5 in. Display, Kit
Part Number: SNE-550-511-3XR
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Carburetors, Gen 3 Ultra Dominator, 1,050 cfm, 4-barrel, Mechanical Secondaries, Dual Inlet, Red and Polished Finish, Annular Booster, 3-circuit, Each
Part Number: HLY-0-80903RD
Estimated Ship Date: Today
Estimated Ship Date: Today
Carburetors, Gen 3 Ultra Dominator, 1,050 cfm, 4-barrel, Mechanical Secondaries, Dual Inlet, Gray and Black Finish, Annular Booster, 2-circuit, Each
Part Number: HLY-0-80902HB
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Fuel Injection System, Sniper 2, Self-Tuning, Throttle body, Polished, 4150 Flange, 650 hp Max, 800 CFM, Return Style Pump, 3.5 in. Display, Kit
Part Number: SNE-550-510-3XR
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Throttle Bodies, Terminator X, Stealth 4150 EFI, Cable Actuation, Four Injectors, 100 lb/hr, Cast Aluminum, Black Finish, Includes Sensors, Each
Part Number: HLY-534-293
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Fuel Injection System, Sniper 2, Self-Tuning, Throttle body, Polished, 4150 Flange, 650 hp Max, 800 CFM, Inline Pump, 5 in. Display, Kit
Part Number: SNE-550-510-5XK
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
Fuel Injection System, Sniper 2, Self-Tuning, Throttle body, Black, 4150 Flange, 650 hp Max, 800 CFM, Returnless Pump, PDM, Bluetooth, Kit
Part Number: SNE-550-511-BPD
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 23, 2026 if ordered today
Estimated Ship Date: Mar 23, 2026 if ordered today
Fuel Injection System, Sniper 2, Self-Tuning, Throttle body, Polished, 4150 Flange, 650 hp Max, 800 CFM, Inline Pump, Bluetooth, Kit
Part Number: SNE-550-510-BXK
Estimated Ship Date: Today
Estimated Ship Date: Today
Truck / SUV
Jeep®
Restoration
Stock Replacement
Late Model Muscle
Tools
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Circle Track
Street Rod
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Paint & Body
Marine
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