Like a cat!
Yes, the coolant runs throught the aluminum extrusions on the edge of the running board like a cat. They are also what makes the running boards so stiff. If you look closely you can see a little 90 degree tube coming out of the running board cooler in the back. That tube goes into a pair of heat exchangers that I made up in the tunnel that go down the outside edges. The coolers are connected together on top of the tunnel in the trunk area of the boss seat. That's why the track is studded down the middle, there are no heat exchangers to hit there......it all clear. The kit from MPI comes with a really nice "U" cooler. That sled holds more than twice as much coolant as a stock viper - about 2 gallons.
Madmatt