I started getting the install of my Nitrous and I didn't want to run the line under the car. It just seemed like to much of a hastle. So I ran it with all the wires under the carpet and came up in a grommet under the hood just under the huge wiring harness on the passenger side. I couldn't find the NHRA rule book about it but do they say that it has to be ran outside the car? I am going to mount my Zex box in the corner next to my air intake. Hopefully I will have enough line to send it to the intake tube.