I have a Magnaflow muffler for sale. Model #14803. It was on my car approximately 3000 miles. It was welded to my midpipe so part of the mid-pipe is still attached. A muffler shop can attach it or cut the midpipe or do whatever you need done.
I also have a small resonator that has parts of my midpipe attached to both ends.
Will let go cheap. If interested just send a pm. Thanks.