If you are already registered, please log in.
Create your account and enjoy a new shopping experience.
Create A New Account
SKU: EFI-558-456
Holley EFI Pro-Dash I/O Harness, Unterminated Input/Output Wiring - (EFI-558-456)
Holley EFI
DescriptionSniper EFI I/O Harness; Incl. 10 PIN Terminated End; Incl. Ground Trigger I/O Wires; Tach Output Wire; Points Output Wire; Digital Gauge Out Wire;This harness gives you the access to 2...
Holley EFI
DescriptionDigital Dash I/O Adapter w/Unterminated Vehicle Harness; Provides 10 More Inputs/Outputs To Digital Dash; Incl. USB Memory Stick/Firmware;Holley manufactures high performance carburetors,...
Holley EFI
DescriptionUnterminated Vehicle Harness For Digital Dash; Wiring Harness For Digital Dash;Holley manufactures high performance carburetors, manifolds, superchargers, water pumps, throttle body fuel...
Holley EFI
DescriptionPro Dash Service Harness; Service Replacement Pro Dash Harness;Features & BenefitsPro Dash Service Harness
Holley EFI
DescriptionFuel Injection Wire Harness; Universal Unterminated; Bosch EV1 Style; For HP EFI/Dominator EFI Fuel Injection Systems;This is a replacement 8 cylinder injector harness. It connects the...
Holley EFI
DescriptionFuel Injection Wire Harness; Universal Unterminated 24 Injector; For HP MPFI/Dominator MPFI Fuel Injection Systems;This is a replacement 8 cylinder injector harness. It connects the main...
have questions?
Price match guarantee
Industry leading support
High quality parts
On-time delivery
Some parts are not legal for use in California or
other states with similar laws / regulations
