The Holley EFI CAN Input/Output Module can be added to Holley EFI HP, Dominator, Terminator X and Terminator X Max EFI installations. This CAN module will add (8) inputs and (8) outputs to the system which can be used to control additional accessories or provide critical sensor inputs. This module is perfect for anyone wanting to enhance the capabilities of their current ECU and have already tapped out their ECU's Input/Output channels. Please refer to 554-165 for full kit.
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