1988 Inflatable Lumbar Seat Replacement Parts
The lumbar bags I had on hand appear to have gotten to the point that they are now old and brittle and are no longer durable. So I have disposed of them.
Similar lumbar bags are now available from Corvette suppliers. Look for lumbar bags (I believe) from an 1988 Corvette. They are almost identical to the ones used in the 1988 Fiero.