Greg, I replaced the rear muffler on my '91TE 5 years and 90K miles ago with a "Tesh" brand muffler. If my memory is correct, it looks like the original. Also, build and sound quality are good with aluminized construction at least on the outside. The only rust I see is surface rust at the welds where the exhaust pipes enter and exit the muffler although I don't believe there is any danger of rust through. I have no complaints at this time.

Mark