[Dangerous Doug]

Depends.

If I mount the Halon tank in my trunk, the cable will loop back from the down tube (probably will add a steel braided line over the cable---just because it'll look *****'n) under the E-brake leather cover and then along the frame to the trunk.

If I mount the Halon tank on the cockpit side of the firewall, the cable will run down the down-tube, under the carpet and up the firewall. This is actually the simplest installation, for I can duct the Halon right into the cockpit and into the engine compartment very easily.

Halon fire suppression system just seems like a good idea on an expensive fiberglass car...