indeed, Kona butted tubing rather than Tange that appeard in 1993. I came across an earlier post with a couple of odd coloured Kilaueas from the same era. I think those 2 examples were Tange tubing.
They brought it out in late 92 with the new name, the 93 frame geometry and kit one step up from the Cinder Cone. It proved popular to have a model between the Cinder Cone and the Explosif, so as the 93 Explosif was going over to a Tange Ultimate tubeset, they gave the 1993 Kilauea the same Tange Concept tubeset as the 92 Explosif.
Not a very good picture, but this gives an idea of what it looked like with clean paint and the matching fork. Note that the head tube is 2cm shorter than other size 18 1992 Konas, and the same as 93 Konas.