Stainless steel water tubes are sold through all the usual Pantera vendors: P.I, Hall, PreProformance, PPC/Reno, PPC/Colorado etc. You'll find the stock one-piece left tube VERY difficult to remove, but once out, the new two-piece tubes go in very easy. SS tubes will last forever without corroding, don't transmit as much heat into the cockpit and generally are a good deal. Use the best rubber rad-hose (like Gates Green Stripe) and new screw clamps to complete the job, which is tedious, dirty and difficult, but not too expensive. Many guys double-clamp all the hoses so as to never have to redo this job. Don't forget the ss tube above the thermostat, and the heater hoses including the 2 short ones under the dash. Good luck.
