Holley EFI HP EFI ECU & Harness Kits
$3,093.95
$2,473.95
GVMR_550-604
Air and Fuel Delivery
Fuel Injection Conversion Kit
New Arrivals
Service Kits
Looking for a plug and play alternative for your stock or built late model factory EFI engine? How about a replacement ECU for your...
Holley EFI HP EFI ECU & Harness Kits
$3,374.95
$2,698.95
GVMR_550-604N
Air and Fuel Delivery
Fuel Injection Conversion Kit
Service Kits
Looking for a plug and play alternative for your stock or built late model factory EFI engine? How about a replacement ECU for your...
Holley EFI HP EFI ECU & Harness Kits
$3,206.95
$2,421.95
GVMR_550-603
Air and Fuel Delivery
Fuel Injection Conversion Kit
New Arrivals
Service Kits
Looking for a plug and play kit for your GM LS engine? The HP ECU allows you to accurately control the fuel and ignition...
Holley EFI HP EFI ECU & Harness Kits
$3,093.95
$2,473.95
GVMR_550-601
Air and Fuel Delivery
Fuel Injection Conversion Kit
New Arrivals
Service Kits
Looking for a plug and play alternative for your stock or built late model factory EFI engine? How about a replacement ECU for your...
Holley EFI HP EFI ECU & Harness Kits
$3,206.95
$2,421.95
GVMR_550-602
Air and Fuel Delivery
Fuel Injection Conversion Kit
New Arrivals
Service Kits
Looking for a plug and play kit for your GM LS engine? The HP ECU allows you to accurately control the fuel and ignition...
Holley EFI HP EFI ECU & Harness Kits
$3,487.95
$2,899.95
GVMR_550-602N
Air and Fuel Delivery
Fuel Injection Conversion Kit
New Arrivals
Service Kits
Looking for a plug and play kit for your GM LS engine? The HP ECU allows you to accurately control the fuel and ignition...
