Curious - I don't recall John making one. Do you have a photo?
BKSouthFL started the thread so he should have first refusal on yours. I may take it if he does not want it.
This one attached to the surface of the lower nose pan and it is contoured to fit up tight. it is fiberglass and is very light weight. I was not really impressed with the attachment as all that held it on was about 6 sheet metal screws and of course the holes were rusted. Since it sets so low, it has been banged up by pulling in too close to curbs and such when parking.The air dam I'm looking for is contoured to the shape of the lower front body sheet metal under the grille and is more "dynamic" looking than on the photo of the '80 spider. I'll post a photo tomorrow. Whoever wants the one from the photo may have it. Thanks!