Check on the firewall underneath the intake box, see if there is a rubber plug there.
Awesome. Good to know.Evening. I'll put pics up in the morning. I ran it thru a grommet in firewall. Using turbosmart supplied line, covered in a 8mm convoluted cable cover. Mounted the gauge above air vent. Picked up power for illumination off wiring under dash. Nice n simple install. No major tools needed.