Holley EFI HP EFI ECU & Harness Kit, GM LS2 Stainless Bolt Large Head StyleHolley has been

Large Head StyleHolley has been the undisputed leader in fuel systems for over 100 years

1987-1993 Ford MustangFits 1987-1993 Ford Mustang AOD/AODE and C4 automatic transmissions

Patent # 6

Primary tubes

1993-1993 Cadillac 60 Special

Holley EFI HP EFI ECU & Harness Kit, GM LS2 Stainless Bolt Large Head StyleHolley has beenHP EFI ECU & Harness Kit, GM LS2 Looking for a plug and play kit for your GM LS engine? The HP ECU allows you to accurately control the fuel and ignition of your engine plus much more. Got a stock LS engine? Simply download a base map and you're on your way. Got a turbocharged, nitrous fed LS engine on water meth? This HP EFI kit can control that too! ECU is certified to ISO 8846, SAE J1171 & United States Coast Guard Requirements for Ignition