I am routing the exhaust of a G-62 to a manifold on each side of the cowl of my Mig-3. I am using 5/8 i.d. high temp water heater hose with copper elbows. So far so good, but it gets pretty hot and I am thinking there must be a better way. I suppose I can can go to copper for a lot of it, but copper makes it more difficult. If I can find a 5/8 hose that will withstand 500 degrees (I know I must be dreaming) life will be so much easier. Got any ideas?

Bish
K7QCP