Originally Posted by boothboy
It may have been a regional thing. "Dumps" referred to short turned down tail pipes that did not reach the rear of the car. The end dumped the exhaust downward. The pipes were and turndowns were visible because the rear of the car was raised at the shackles. Why more kids weren't killed by carbon monoxide poisoning I don't know.
Alot of guys did run them but I think around my area it was a question of economics. You could buy a couple of exhaust pipes, hang your mufflers and instal turn downs a lot cheaper than buying tailpipes.