1969 Barracuda Fastback
Well, I can say that the angle of the intermediate pipe and the exhaust pipe does not match. Since I am not accepting any tension on the exhaust system, which may cause cracks in the exhaust manifolds, I removed the exhaust pipe and will bring it to a muffler shop. Muffler, intermediate and tailpipe look ok.
Quite disappointed about the waste of time and money. I sent an Email to Waldron Exhaust's, will see with what solution they come up. For sure I don't want a replacement-will fix whatever I got.