This is the harness that comes with the FRPP Control Pack. The great feature of the Control Pack is that it allows you to run a return-style fuel system. Therefore, we can run our ’94 Cobra’s existing fuel system. Jake ran the Control Pack wiring through the factory firewall holes. He had to cut a hole for the PCM just under the factory air intake hole on the passenger side framerail. That was the most logical place to put it since the wiring comes off the engine in that general area, as well.