Engine Management Systems

Engine Management Systems, HP EFI, ECU, Replacement, Plug-and-Play, 16-Injectors, Eight Coils, Analog Inputs, USB Cable, Software, Each

Part Number: HLY-554-113

3.83 out of 5 stars ( 6 )

Estimated Ship Date: Today

• Free Shipping

Engine Management Systems, Elite 2500 ECU, Four Digital Inputs, Ten Analog Inputs, Each

Part Number: HTH-HT-151300

Not Yet Reviewed

Estimated Ship Date: Today

• Free Shipping

Engine Management System, MicroSquirt, 4 Digital Inputs, 7 Analog Inputs, Kit

Part Number: DIY-MICROSQUIRT8

3.8 out of 5 stars ( 5 )

Estimated Ship Date: Today

• Free Shipping

Engine Control Unit, Elite 2500, with Premium Wire-In Harness, Universal, Kit

Part Number: HTH-HT-151304

Not Yet Reviewed

Estimated Ship Date: Today

• Free Shipping

Engine Management Systems, Elite 1500 ECU, Four Digital Inputs, Ten Analog Inputs, Each

Part Number: HTH-HT-150900

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, NKT O2, GM, LS2, LS7, 58x Crank Sensor, Kit

Part Number: HLY-550-603N

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, for GM TPI, Holley Stealth Ram, Kit

Part Number: HLY-550-601

4.86 out of 5 stars ( 7 )

Estimated Ship Date: Today

• Free Shipping

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

Part Number: HLY-550-604

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, 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, NTK O2, Wideband, Universal, Un-terminated, Kit

Part Number: HLY-550-605N

Not Yet Reviewed

Estimated Ship Date: Oct 13, 2025 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: Oct 13, 2025 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: Oct 13, 2025 if ordered today

• Drop Ship
• Free Shipping
• Special Order

Engine Management Systems, Elite 2500 ECU with Plug and Pin Set, Kit

Part Number: HTH-HT-151301

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, NTK O2, Wideband, GM, LS2, LS3, LS7, Kit

Part Number: HLY-550-607N

Not Yet Reviewed

Estimated Ship Date: Oct 13, 2025 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, CANBUS, Universal, MPFI, Kit

Part Number: HLY-550-604N

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: Oct 13, 2025 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: Oct 13, 2025 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, CANBUS, Ford, Multi-Point, Kit

Part Number: HLY-550-606N

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Oct 13, 2025 if ordered today

• Drop Ship
• Free Shipping
• Special Order