Hi, I have a 300 TDT (87) and I have replaced all of the exhaust except for the piece of pipe that comes from the manifold down. It has what looks like a stainless flex pipe and a pipe on the end that bolts to the manifold over a "donut" and then a piece of exhaust on the other end that goes to the first muffler. Has anyone ever found a place that makes a replacement for this piece? I think the original is quite long but 24-30" would be long enough to hook into it. I am afraid to ask MB what a replacement would be.