Holley Electronic Fuel Injection covering full ECU wiring all the way to fuel system and components.
Holley EFI Ford MPFI HP ECU & Harness Kits w/ NTK Oxygen Senso
Holley EFI HP ECU & Unterminated Harness Kits w/ NTK Oxygen Sensor
Holley EFI MPFI HP EFI ECU & Harness Kits w/ NTK Oxygen Sensor
Holley EFI HP ECU & Harness Kit For TPI & Stealth Ram w/ NTK Oxygen Sensor
Holley EFI Ford Coyote Ti-VCT Capable HP Kit - Bosch Oxygen Sensor
Holley EFI GM LS2/3/7 HP ECU & Harness Kits w/ Bosch Oxygen Sensor
Holley EFI GM LS1/LS6 HP ECU & Harness Kit w/ Bosch Oxygen Sensor
Holley EFI Ford MPFI HP ECU & Harness Kits w/ Bosch Oxygen Sensor
Holley EFI HP ECU & Unterminated Harness Kits w/ Bosch Oxygen Sensor
Holley EFI MPFI HP EFI ECU & Harness Kits w/ Bosch Oxygen Sensor
Holley EFI HP ECU & Harness Kit For TPI & Stealth Ram w/ Bosch Oxygen Sensor
Holley EFI Ford Coyote TI-VCT Harness Kit
Holley EFI Ford Modular 2 Valve Harness Kit
Holley EFI GM LS1/6, 24X Harness Kit
Holley EFI Ford Foxbody 5.0L V8 W/TFI Harness Kit
Holley EFI GM LS 58X Bosch Injector Harness Kit
Holley EFI Coyote Ti-VCT Main Harness for HP Smart Coils (2011-2017)
Holley EFI GM LS 58X USCAR/ EV6 Injector Harness Kit
Holley EFI Ford Modular 2V & 4V Main Harness for Smart Coils
Holley EFI Universal V8 MPFI Harness Kit
Holley EFI GM TPI and Stealth Ram Harness Kit
Holley EFI Ford Coyote 11-17 Engine Main Harness w/ Ti-VCT and Stock Coils
Holley EFI Gen III HEMI Main Harness Late w/ TPS and Idle Air Control Connections
