In Stock
- In Stock Items. Ships Today. (85) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
- In Stock Items, Including at a Supplier. Ships In a Few Days. (110) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
- All Items, Including Not In Stock (118) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
Department
Part Type
- Fuel Injection Systems (57) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
- Engine Management Systems (47) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
- Fuel Injection System Components (2) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
- Fuel Injection System Wiring Harnesses (2) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
- Digital Dashboard Displays (1) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
- Throttle Bodies (1) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
Sub-Brand
- Holley Sniper (33)
Make/Model
Make/Engine
Filter Options
- Circle Track (2)

Selected Filters

Availability

- In Stock Items. Ships Today. (85) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
- In Stock Items, Including at a Supplier. Ships In a Few Days. (110) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
- All Items, Including Not In Stock (118) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
Filters
Department
Part Type
- Fuel Injection Systems (57) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
- Engine Management Systems (47) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
- Fuel Injection System Components (2) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
- Fuel Injection System Wiring Harnesses (2) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
- Digital Dashboard Displays (1) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
- Throttle Bodies (1) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
Sub-Brand
- Holley Sniper (33)
Make/Model
Make/Engine
Filter Options
- Circle Track (2)

110 Results Found For "Injection"

Individual Parts

Part Groups

Results 51 - 75 of 110

Holley HP EFI Universal Retrofit Engine Management Systems 550-501

Fuel Injection Systems, HP EFI Retrofit, Engine Management, Multi Point, 4-barrel, 4500 Flange, Sensors, Fuel Rails, Regulator, Wire Harness, Kit

Part Number: HLY-550-501

Not Yet Reviewed

Estimated Ship Date: May 18, 2026 if ordered today

...Loading

Estimated Ship Date: May 18, 2026 if ordered today

Holley Terminator X Stealth 4150 58X LS EFI Fuel Injection Systems 550-1061

Fuel Injection Systems, Terminator X, Stealth 4150, 58X LS EFI, Four Injector, Throttle Body, Speed Density, Aluminum, Black, Chevy, 4.8-7.0L, Kit

Part Number: HLY-550-1061

Not Yet Reviewed

Estimated Ship Date: Today

...Loading

Estimated Ship Date: Today

Holley Sniper 2 EFI 650 HP Returnless Fuel Injection Systems 550-511-5XD

Fuel Injection System, Sniper 2, Self-Tuning, Throttle body, Black, 4150 Flange, 650 hp Max, 800 CFM, Returnless Pump, 5 in. Display, Kit

Part Number: SNE-550-511-5XD

Not Yet Reviewed

Estimated Ship Date: Today

...Loading

Estimated Ship Date: Today

Holley Terminator X Stealth 4150 24X LS EFI Fuel Injection Systems 550-1022

Fuel Injection Systems, Terminator X, Stealth 4150, 24X LS EFI, Four Injector, Throttle Body, Speed Density, Aluminum, Gold Chevy, 4.8-7.0L, Kit

Part Number: HLY-550-1022

Not Yet Reviewed

Estimated Ship Date: Today

...Loading

Estimated Ship Date: Today

Holley Sniper 2 EFI 650 HP Returnless Fuel Injection Systems with Power Distribution Module 550-511-5PD

Fuel Injection System, Sniper 2, Self-Tuning, Throttle body, Black, 4150 Flange, 650 hp Max, 800 CFM, Returnless Pump, PDM, 5 in. Display, Kit

Part Number: SNE-550-511-5PD

4.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

...Loading

Estimated Ship Date: Today

Holley Terminator X Stealth 4500 2x4 EFI Fuel Injection Systems 550-1080

Fuel Injection Systems, Terminator X, Stealth 4500, 2x4 EFI, Eight Injector, Dual Throttle Body, Speed Density, Aluminum, Shiny, Tunable, Kit

Part Number: HLY-550-1080

Not Yet Reviewed

Estimated Ship Date: Today

...Loading

Estimated Ship Date: Today

Holley HP EFI Universal Retrofit Engine Management Systems 550-500

Fuel Injection Systems, HP EFI Retrofit, Engine Management, Multi Point, 4-barrel, 4150 Flange, Sensors, Fuel Rails, Regulator, Wire Harness, Kit

Part Number: HLY-550-500

Not Yet Reviewed

Estimated Ship Date: May 18, 2026 if ordered today

...Loading

Estimated Ship Date: May 18, 2026 if ordered today

Holley Sniper 2 EFI 650 HP Return-Type Fuel Injection Systems 550-511-5XR

Fuel Injection System, Sniper 2, Self-Tuning, Throttle body, Black, 4150 Flange, 650 hp Max, 800 CFM, Return Style Pump, 5 in. Display, Kit

Part Number: SNE-550-511-5XR

Not Yet Reviewed

Estimated Ship Date: Today

...Loading

Estimated Ship Date: Today

Holley EFI 12.3 in. Pro Dash Touch Screens 553-111X

Fuel Injection System Components, Holley EFI, 12.3 in. Pro Dash, Touch Screen, Black Case, Wire Harness, Multiple Inputs, Built-in GPS, Odometer, Kit

Part Number: HLY-553-111X

Not Yet Reviewed

Estimated Ship Date: Today

...Loading

Estimated Ship Date: Today

Holley EFI Systems Wiring Harnesses 550-616N

Engine Management Systems, HP EFI, ECU and Harness, Up to 16-Injectors, 8-Coils, NTK O2, Wideband, Ford, Lincoln, Mercury, 2-valve, 4.6L, 5.4L, Kit

Part Number: HLY-550-616N

Not Yet Reviewed

Estimated Ship Date: May 18, 2026 if ordered today

...Loading

Estimated Ship Date: May 18, 2026 if ordered today

Holley EFI Systems Wiring Harnesses 550-617N

Engine Management Systems, HP EFI, ECU and Harness, Up to 16-Injectors, 8-Coils, NTK O2 Sensor, Wideband, CANBUS, Ford, 4-valve, 4.6L, 5.4L, Kit

Part Number: HLY-550-617N

Not Yet Reviewed

Estimated Ship Date: May 18, 2026 if ordered today

...Loading

Estimated Ship Date: May 18, 2026 if ordered today

Holley Terminator X Max GM Gen V LT Direct Injection Kits 550-1624

Fuel Injection Systems, Terminator X Max, LT4, Direct Injection, ECM, Self Tuning, Power Adder Compatible, Wiring Harness, Oxygen Sensor. GM Late, Kit

Part Number: HLY-550-1624

Not Yet Reviewed

Estimated Ship Date: Today

...Loading

Estimated Ship Date: Today

Holley Terminator X Max GM Gen V LT Direct Injection Kits 550-1634-6

Fuel Injection Systems, Terminator X Max, LT4, Direct Injection, ECM, Transmission Controller, 6L80E Power Adder Compatible, GM Late ,Kit

Part Number: HLY-550-1634-6

Not Yet Reviewed

Estimated Ship Date: Today

...Loading

Estimated Ship Date: Today

Holley Terminator X Max GM Gen V LT Direct Injection Kits 550-1633-6

Fuel Injection Systems, Terminator X Max, LT4, Direct Injection, ECM, Transmission Controller, 6L80E Power Adder Compatible, GM Early ,Kit

Part Number: HLY-550-1633-6

Not Yet Reviewed

Estimated Ship Date: May 18, 2026 if ordered today

...Loading

Estimated Ship Date: May 18, 2026 if ordered today

Holley EFI Dominator Throttle Bodies 112-593

Throttle Bodies, EFI, Dominator Flange, Multi-Port Injection, Cable Actuated, 2,550 cfm, Billet Aluminum, Natural, Holley 4500 Bolt Pattern, Each

Part Number: HLY-112-593

Not Yet Reviewed

Estimated Ship Date: May 18, 2026 if ordered today

...Loading

Estimated Ship Date: May 18, 2026 if ordered today

Holley Dominator EFI Vehicle Management Systems 554-114

Engine Management Systems, Dominator EFI, ECU, Up to 24-Injectors, 12-Coil, Digital/Analog Input, Drive-by-Wire, VVT, Trans Control, 4L60E/4L80E, Each

Part Number: HLY-554-114

4.17 out of 5 stars ( 6 )

Estimated Ship Date: Today

...Loading

Estimated Ship Date: Today

Holley EFI Digital Pro Dash Standalone Kits 553-116

Digital Dashboard Displays, Holley EFI, 12.3 in. Digital Pro Dash, Standalone, Touch Screen, Aluminum Case, Built-in GPS, Odometer, Data Logger, Kit

Part Number: HLY-553-116

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

...Loading

Estimated Ship Date: Today

Holley Dominator EFI Vehicle Management Systems 550-651

Engine Management Systems, Dominator EFI, Connects 24-EV1 Injectors, 12-Coils, Analog/Digital inputs, 4x Cam Sensor, Chevy, 4.8-7.0L, 58x Crank, Kit

Part Number: HLY-550-651

Not Yet Reviewed

Estimated Ship Date: Today

...Loading

Estimated Ship Date: Today

Holley Dominator EFI Vehicle Management Systems 554-114LW

Engine Management Systems, Dominator EFI, Lightweight ECU, Up to 24-Injectors, 12-Coils, Digital/Analog Input, Drive-by-Wire, VVT, Trans Control, Each

Part Number: HLY-554-114LW

Not Yet Reviewed

Estimated Ship Date: Today