Automotive Ignition & Electrical Supplies

Engine Management Systems, HP EFI, ECU and Harness, Up to 16-Injectors, 8-Coils, Four Digital Inputs, Wideband, CANBUS, Universal, Un-terminated, Kit

Part Number: HLY-550-605

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Estimated Ship Date: Oct 6, 2025 if ordered today

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Engine Management Systems, HP EFI, ECU and Harness, Up to 16-Injectors, 8-Coils, Four Digital Inputs, NTK O2, Wideband, Universal, Un-terminated, Kit

Part Number: HLY-550-605N

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Estimated Ship Date: Oct 6, 2025 if ordered today

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Engine Management Systems, HP EFI, ECU and Harness, Up to 16-Injectors, 8-Coils, Four Digital Inputs, Wideband, GM, LS2, LS3, LS7, Bosch O2, Kit

Part Number: HLY-550-607

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Estimated Ship Date: Oct 6, 2025 if ordered today

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

Part Number: HLY-550-628

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Oxygen Sensor, O2 Sensor, 5-Wire, 0-5 V, Thread In, LSU 4.2, Wideband, Universal, Each

Part Number: SUM-196000

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

Engine Control System, XFI Sportsman EFI, ECU, Wiring Harness, Wide-band O2 Sensor, Kit

Part Number: FST-303000

3.4 out of 5 stars ( 5 )

Estimated Ship Date: Nov 25, 2025 if ordered today

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Engine Management Systems, HP EFI, ECU and Harness, Up to 16-Injectors, 8-Coils, NTK O2 Sensor, Wideband, CANBUS, Ford, 4-valve, 5.0L, Kit

Part Number: HLY-550-625N

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Engine Management Systems, HP EFI, ECU and Harness, Connects 16-Injectors, 8-Coils, Bosch O2, Wideband, Ford, Lincoln, Mercury, 2V, 4.6L, 5.4L, Kit

Part Number: HLY-550-616

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

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Engine Management Systems, HP EFI, ECU and Harness, Up to 16-Injectors, 8-Coils, Four Digital Inputs, NTK O2, Wideband, CANBUS, Universal, MPFI, Kit

Part Number: HLY-550-604N

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Engine Management Systems, HP EFI, ECU and Harness, Up to 16-Injectors, 8-Coils, Four Digital Inputs, NTK O2, Wideband, GM, LS2, LS3, LS7, Kit

Part Number: HLY-550-607N

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Estimated Ship Date: Oct 6, 2025 if ordered today

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

Part Number: HLY-550-628N

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Estimated Ship Date: Oct 6, 2025 if ordered today

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Gauge, NanoPRO, Wideband O2, Digital, LCD Touchscreen, O2 Conditioner, Each

Part Number: FCH-3010009597

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Data Acquisition, O2 Alert Warning and Recording System, Two Wideband Oxygen Sensors, Kit

Part Number: ALT-OA-DUAL

1.0 out of 5 stars ( 1 )

Estimated Ship Date: Oct 1, 2025 if ordered today

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Data Acquisition, O2ALERT System, Includes Single Wideband Oxygen Sensor, Each

Part Number: ALT-OA

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Estimated Ship Date: Oct 3, 2025 if ordered today

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Engine Management Systems, HP EFI, ECU and Harness, Up to 16-Injectors, 8-Coils, Four Digital Inputs, Wideband, CANBUS, Ford, Multi-Point, Kit

Part Number: HLY-550-606

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Oct 6, 2025 if ordered today

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Engine Management Systems, HP EFI, ECU and Harness, Up to 16-Injectors, 8-Coils, Four Digital Inputs, NTK O2, Wideband, CANBUS, Ford, Multi-Point, Kit

Part Number: HLY-550-606N

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Oct 6, 2025 if ordered today

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Engine Management Systems, HP EFI, ECU and Harness, Up to 16-Injectors, 8-Coils, Bosch O2 Sensor, Wideband, CANBUS, Ford, 4-valve, 5.0L, Kit

Part Number: HLY-550-619

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Estimated Ship Date: Oct 6, 2025 if ordered today

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Engine Management Systems, HP EFI, ECU and Harness Up to 16-Injectors, 8-Coils, NTK O2 Sensor, Wideband, CANBUS, Ford, 4-valve, 5.0L, Kit

Part Number: HLY-550-619N

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Estimated Ship Date: Oct 6, 2025 if ordered today

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Gauge Wiring Harnesses, Replacement Power Harness for X-Series Wideband Gauges, Each

Part Number: AVM-30-3459

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

Electrical Wires, Holley EFI, Shielded Cable, Black Jacket, 7-conductor, Five 18 gauge Wires, Two 20 gauge Wires, Wideband, 25 ft. Spool, Each

Part Number: HLY-572-100

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Engine Management System Combo, Megasquirt PNP Gen2, Wideband Gauge, Ford, Kit

Part Number: CMB-03-0269

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Electrical Wires, Holley EFI, Shielded Cable, Black Jacket, 7-conductor, Five 18 gauge Wires, Two 20 gauge Wires, Wideband, 100 ft. Spool, Each

Part Number: HLY-572-101

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Data Acquisition, Racepak, Four Channel Wideband Controller, Left Cylinder Bank, Each

Part Number: RPK-220VMAF41357

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Engine Management Systems, Terminator EFI, Module, Replacement, Self-Tune, Controls 8-Injectors, 8-Coils, Four Analog Inputs, Wideband, CANBUS, Each

Part Number: HLY-554-119

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Estimated Ship Date: Oct 6, 2025 if ordered today

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Weatherproof Connectors, Holley EFI, Wideband Connectors, Main Harness Side, Metripack, 8-pin, Male, Black, Seals, TPA, 10-piece, Set

Part Number: HLY-570-300

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Estimated Ship Date: Today