Holley Engine Harnesses 558-434 Item Image
Holley

Holley Digital Dash I/O Adapter w/ Terminated Vehicle Harness

SKU: 1D69B | MPN:  558-434
Only 3 units left
Sale price$275.10 USD

I/O Adapter w/Terminated Vehicle Harness

Features:
  • Provides ten addiitonal inputs/outputs to the 7" digital dash
  • Brings out connections to a waterproof 26 pin connector similiar to ones used on EFI units
  • Harness includes USB memory stick to update digital dash firmware that supports adapter

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