Fred Hoelzle, Thanks for your above comments. I appreciated it.
Perhaps I made myself not clear on my last post. I apologize if there is any confusion on the issue.On the center/ front muffler, there is a total break, leaving the broken pipe end of the center muffler intact with clamp connecting to the exhaust pipe. The exhaust pipe, itself, is fine. On the front center muffler (connecting to the catalytic converter), another two clamps holding the center/front muffler.
I don't know if it is worth to weld that big gaping hole that is on the end of the center/front muffler. the hole itself is about 3 inches in diameter, I think. I also think the hole left little room to weld back the other end of the broken pipe of the center/front muffler. I am tempting to buy a replacement front/center muffler. I can simply remove the center/front muffler by loosening the bolts on the two clamps that is on the catalytic converter. Also, removing the clamp on the other end of broken pipe of the front/center muffler (connecting to the front end of the exhaust pipe). Remember, the exhaust pipe end connecting to the rear muffler and so far, both the rear end of the exhaust pipe and the front end of the rear muffler remains connected and intact. I wish I had a camera to post a picture of the issue. I have not done anything yet. I don't know if all the clamps are too tight to remove the front/center muffler. As far as I can tell, I don't see any welding connecting the catalytic converter, front/center muffler and the exhaust pipe. I hope I made myself clear on the issue.
I came up with two front/center muffers that specifically fits my Mercedes E320 wagon. One is Bosal 175-291 muffler. The second is Eberspaecher 23.191.82 Muffler. Are they both good front/center mufflers? Is there any preference on one over the other? Any comments, feedback is greatly appreciated.