Hey Rocky, thanks for the reply.
I have never taken the console cover off so do I need to pull the stereo and guage panel to do that?
As for the tubes I am considering using copper pipe and fittings like household plumbing materials with threaded female 1/2" pipe to screw in 1/2" male pipe fittings that have 5/8" flared nipple to receive the hoses on each end.
I can make the pipes in two pieces and solder them together once they are in the tunnel.
My other option is to run heater hose instead of pipe once I remove the old pipe?
Louie