Engine Management Systems

Engine Management Systems, HP EFI, ECU and Harness, Up to 16-Injectors, 8-Coils, Four Digital Inputs, Wideband, CANBUS, Chevy, LS, 5.7L, Kit

Part Number: HLY-550-602

4.83 out of 5 stars ( 6 )

Estimated Ship Date: May 13, 2026 if ordered today

• Drop Ship
• Free Shipping
• Special Order

Engine Management Systems, HP EFI, ECU and Harness, Up to 16-Injectors, 8-Coils, Four Digital Inputs, NKT O2 Sensor, GM, LS, 24x Crank Sensor, Kit

Part Number: HLY-550-602N

Not Yet Reviewed

Estimated Ship Date: Today

• Free Shipping

Engine Management Systems, HP EFI, ECU and Harness, Up to 16-Injectors, 8-Coils, Four Digital Inputs, O2 Sensor, for GM TPI, Holley Stealth Ram, Kit

Part Number: HLY-550-601N

Not Yet Reviewed

Estimated Ship Date: May 13, 2026 if ordered today

• Drop Ship
• Free Shipping
• Special Order

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

Not Yet Reviewed

Estimated Ship Date: May 14, 2026 if ordered today

• Drop Ship
• Free Shipping
• Special Order

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: May 13, 2026 if ordered today

• Drop Ship
• Free Shipping
• Special Order

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

Not Yet Reviewed

Estimated Ship Date: May 13, 2026 if ordered today

• Drop Ship
• Free Shipping
• Special Order

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

Not Yet Reviewed

Estimated Ship Date: May 13, 2026 if ordered today

• Drop Ship
• Free Shipping
• Special Order

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

Not Yet Reviewed

Estimated Ship Date: May 15, 2026 if ordered today

• Drop Ship
• Free Shipping
• Special Order

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

Not Yet Reviewed

Estimated Ship Date: May 13, 2026 if ordered today

• Drop Ship
• Free Shipping
• Special Order