Good evening, My name is JD and I am new to the forum. I am helping my son rebuild a 1980 4.9l Turbo. I am not a mechanic in any sense of the word but I am very mechanically inclined. Does anybody have any suggestions on how or where to buy pieces for the exhaust system. mine is ok to the cat on the passenger side but there is nothing else. Can you buy pre-bent stuff for this?