I used Accurate headpipes and mufflers on my 68 383 Dart GTS with NOS tailpipes. I had to use reducers on the outlets of the mufflers so the little tiny factory tailpipes could be used. The rest of the Accurate system was nice, but if you buy where the headpipes are shipped to you then you get two pieces. If you buy in advance and have Tom bring them to you at a show then you can get them in one piece.