Product Description
Holley 558-400 Auxiliary Input/Output Harness
Compatible with Holley Terminator X, HP or Dominator EFI systems
This unterminated harness connects to the (8) pin Metri-Pack Input/Output connector located in most Holley EFI main harnesses.
Features:
- (8) Metri-Pack pins
- (4) Input Wires
- (4) Output Wires
- Assorted wire colors
