I just bought one from Auto Zone , it took a day or two to get here but fits fine , It does not have the metal spring in it tho
I reached out to Highway Stars. Unfortunately, they are not interested in this topic.
Perhaps they will continue to sell the Gates 21211 lower radiator hose meant for hot air and NA applications for ALL 84-87 turbo buicks. It is misleading that their part description notes the 86-87 GM part # 25523616, states their hose is molded as original, but they picture and sell only the hot air hose.