A Body Shorty Stainless Headers
I also had a set of headers for a Mustang that was different than anything currently offered for the A bodies.
It was a Bassani set of full length step tubes. However, the tubes were separate from the collectors. You put the tubes on one at a time, and then smacked the collectors on. It made the install go very fast, and no need to jack the engine or anything. Obviously, the flange at the head was not one piece.