Holley EFI- 550-500 4150 Universal MPI Retrofit Kit
Holley EFI- 558-506 Ford Mod Motor 4 Valve EFI Harness kit
Holley EFI- 558-502 GM LS 58X EFI Harness Kit LS2/LS3/LS7
Holley EFI- 558-504 Universal V8 MPFI EFI Harness Kit
Holley EFI- 558-501 GM 58X EFI Harness Kit
Holley EFI- 558-500 GM LS 24X Harness Kit
Holley EFI 558-505 Ford Modular 2 Valve EFI Harness Kit
Holley EFI 558-510 Ford Coyote Ti-VCT Harness Kit
Holley EFI- 558-503 GM TPI and Stealth Ram EFI Harness Kit
Holley EFI 558-508 Universal Ford V-8 Harness Kit
Holley EFI- 550-619 HP EFI kit for 11-12 Coyote w/TI-VCT
Holley EFI- 550-619N HP ECU and Harness kit for 11-12 Coyote w/Ti-VCT