Should the nitrous line be run inside or outside the car and exactly how should I route it from the spare tire area?

 

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I just cut a hole in the trunk (vert), ran the lines under the car (following the fuel lines) and back up to the engine. 8yrs no probs

 

I ran mine inside the car. I ran it along the door sill and under the dash through the hole behind the pcm

 

I run 'em inside along the door sill

 

I wanted to run mine outside but it was a little easier to run it inside for my center console gauge.

 

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I ran mine through the door sill too, then through that hole behind the PCM. I couldn't get the damn plastic sill cover to sit/snap in right though.

 

When i used to have mine in the truck area i ran it inside the car along the passenger side under the side molding on the door seal up through the gromet on the firewall beind the PCM. I had to cut the gromet in order to fit the nitrous line through but once i did that everything was good to go.

-Chris