I have not checked lately but I purchased some primo walker tail pipes for the 82-84 cars a few years back. They were identical to original with the duel chromed/polished tip on the end. The price was very reasonable. They might be carrying something similar for the 86/93 cars also.
I need a complete exhaust system for the 85 Texas car if anyone comes across one. NOS preferred if you happen to have one laying in your attic...
I need to start hitting these major swap meets to find some parts.