These aluminum bulkheads secure to the firewall offering a much smoother transition for CAE shifter cables to pass through. (2) 0.875" holes will need to be drilled (or for existing applications the holes will need to be stepped up to 0.875") for the male side to fit through the firewall. No special tools are required otherwise to install the bulkheads. The CAE cables fit snuggly through once the heat shielding on the cables has been removed. It can be cut to length and reinstalled once the cables have passed through the bulkheads.
*Made in the USA*