Ritchie…..There are several aftermarket vendors that can reproduce the dual exhaust system for our cars, in stainless or aluminized steel. I used Classic Exhaust. If I remember correctly they are in Florida. They sent a complete set including the exhaust pipes, mufflers, and tail pipes all bent properly. Everything fit together perfectly. The hardest part of the project was finding the correct hangers for the driver's side. They show up on E-Bay from time to time, But you can do an acceptable job using universal type pieces. By the way, those donuts are not what is supposed to be used to seal the head pipe to the exhaust manifold. They don't allow the nuts and bolts to be tightened evenly, and can cause leaks. Use a flat gaskets made for that seal……John