Holley Performance Carbs & More

Fuel Injection Systems Wiring Harnesses, Dominator EFI, J4 Auxiliary Harness, MPFI, Speed Density/Throttle, 26 Input/Outputs, Connector Included, Kit

Part Number: HLY-558-404

4.0 out of 5 stars ( 1 )

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Intake Manifolds, Sniper EFI, Fabricated, Cathedral Port, 102mm Throttle Body, 2,200-6,800 RPM, Aluminum, Silver, Chevy, LS, 4.8-6.0L, Kit

Part Number: SNE-820041-1

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Fuel Injection System Wiring Harnesses, Holley EFI, Replacement, EV6 Unterminated, Injector Harness, 36 in. Long, with Pins, Seals, Connector, Kit

Part Number: HLY-558-216

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Fuel Injection System Wiring Harnesses, Holley EFI, GM LS 58X Crank Sensor, Includes Power, EV6 Injector, Main Harnesses, for HP, Dominator ECUs, Kit

Part Number: HLY-558-501

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Estimated Ship Date: Feb 17, 2026 if ordered today

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Fuel Injection System Wiring Harnesses, Holley EFI, Unterminated, Ignition Harness, with Pins, Seals, Connector, for HP, Dominator EFI Systems, Kit

Part Number: HLY-558-306

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Fuel Injection Systems Wiring Harnesses, Dominator EFI, J3 Auxiliary Harness, MPFI, Speed Density/Throttle, 17 Input/Outputs, Connector Included, Kit

Part Number: HLY-558-403

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Fuel Injection System Wiring Harnesses, Holley EFI, GM LS 24X Crank Sensor, Includes Power, LS1 Injector, Main Harnesses, for HP, Dominator ECUs, Kit

Part Number: HLY-558-500

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Estimated Ship Date: Feb 16, 2026 if ordered today

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Fuel Injection System Wiring Harnesses, Holley EFI, Terminator Stealth 2x4, Upgrade Main Harness, Plug-and-Play, Universal, Kit

Part Number: HLY-558-121

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Fuel Injection System Wiring Harnesses, Holley EFI, Universal, V8 MPFI Harness, with Main, Power, Bosch Injector Harnesses, for HP, Dominator ECU, Kit

Part Number: HLY-558-504

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Estimated Ship Date: Feb 16, 2026 if ordered today

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Fuel Injection System Wiring Harnesses, Holley EFI, GM LS 58X Crank Sensor, Power, Bosch Injector, Main Harnesses, for HP, Dominator ECUs, Kit

Part Number: HLY-558-502

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Estimated Ship Date: Feb 16, 2026 if ordered today

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Fuel Injection System Wiring Harnesses, Holley EFI, Ford V8, Universal MPFI, with Main, Power, Injector Harnesses, for HP, Dominator ECU, Kit

Part Number: HLY-558-508

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Fuel Injection System Wiring Harnesses, Holley EFI, Includes Stealth Ram/TPI Main, Power, Injector Harnesses, for HP, Dominator ECU, Chevrolet, Kit

Part Number: HLY-558-503

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Estimated Ship Date: Feb 16, 2026 if ordered today

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Fuel Injection System Wiring Harnesses, Holley EFI, Coyote Ti-VCT, Main Harness, Plug-and-Play, Drive-by-Wire, with Holley Smart Coils, Ford, 5.0L Kit

Part Number: HLY-558-122

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Estimated Ship Date: Feb 17, 2026 if ordered today

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Fuel Injection System Wiring Harnesses, Holley EFI, 2V Modular EFI, with Main, Power, Injector Harnesses, for HP, Dominator ECU, Ford, 4.6-5.4L, Kit

Part Number: HLY-558-505

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Estimated Ship Date: Feb 16, 2026 if ordered today

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Intake Manifolds, Sniper EFI, Fabricated, Cathedral Port, 92mm Throttle Body, 1,800-6,400 RPM, Aluminum, Black, Chevy, LS, 4.8-6.0L, Kit

Part Number: SNE-820102-1

5.0 out of 5 stars ( 1 )

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Intake Manifolds, Sniper EFI, Low-Profile, Hi-Ram, Rectangular Port, 102mm Throttle Body, 1,800-7,000 RPM, Welded, Black, Chevy, LS, 6.0L, 6.2L, Kit

Part Number: SNE-822112-1

5.0 out of 5 stars ( 1 )

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Fuel Injection System Wiring Harnesses, Holley EFI, Ford Coyote, Drive-By-Wire Harness, Multi-port Style, for HP/Dominator EFI System, Ford, 5.0L, Kit

Part Number: HLY-558-422

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Intake Manifolds, Sniper EFI, Fabricated, Cathedral Port, 92mm Throttle Body, 2,200-6,800 RPM, Aluminum, Black, Chevy, LS, 4.8-6.0L, Kit

Part Number: SNE-820032-1

4.75 out of 5 stars ( 4 )

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Intake Manifolds, Sniper EFI, Hi-Ram, Rectangular Port, 102mm Throttle Body, 1,800-6,400 RPM, Welded Aluminum, Silver, Chevy, LS Base, 6.2L, Kit

Part Number: SNE-822111-1

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Intake Manifolds, SBF Hi-Ram, EFI, Multi-port, 1,500-7,000 RPM Range, 95mm Bore, Aluminum, Black, Ford, 4.7L, 5.0L, Windsor, 8.20 in. Deck Height, Kit

Part Number: HLY-300-272BK

5.0 out of 5 stars ( 1 )

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Intake Manifolds, SBF Hi-Ram, EFI, Multi-port, 1,500-7,000 RPM Range, 95mm Bore, Aluminum, Satin, Ford, 4.7L, 5.0L, Windsor, 8.20 in. Deck Height, Kit

Part Number: HLY-300-272

5.0 out of 5 stars ( 1 )

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Intake Manifolds, Sniper EFI, Hi-Ram, Rectangular Port, 92mm Throttle Body, 1,800-6,400 RPM, Welded Aluminum, Black, Chevy, LS Base, 6.0L, 6.2L, Kit

Part Number: SNE-822102-1

1.0 out of 5 stars ( 1 )

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Intake Manifolds, Sniper EFI, Hi-Ram, Rectangular Port, 92mm Throttle Body, 2,200-6,800 RPM, Welded Aluminum, Silver, Chevy, LS, 6.0L, 6.2L, Kit

Part Number: SNE-822031-1

3.0 out of 5 stars ( 2 )

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Fuel Injections System Wiring Harnesses, Gen III Hemi, Drive-By-Wire Harness, Late Pedal, OE Connectors, Plug-and-Play, Chrysler, Dodge, Jeep, Kit

Part Number: HLY-558-418

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Estimated Ship Date: Feb 16, 2026 if ordered today

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Intake Manifolds, Sniper EFI, Fabricated, Cathedral Port, 102mm Throttle Body, 1,800-6,400 RPM, Aluminum, Black, Chevy, LS, 4.8-6.0L, Kit

Part Number: SNE-820112-1

2.0 out of 5 stars ( 1 )

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