I did the same test on my Everest exhaust at the end of the job and it was HALF the temp on the pipe than Scott had. And glowing is NOT normal.I'd be wrapping or shielding that exhaust.
3 air cooled (one Onan and two Kohlers)
and one water cooled 3cyl Kabota, I've never seen an exhaust glow that red in day light
..L.T.A.
Offering free Chems and some tools? That’s pocket change!