I sold mine and installed the Magnaflow & Y-pipe. I think it sold the same day I posted it or maybe took 2 days.
I sold it for $150 + shipping and I used the Magnaflow box.
The person I sold it to didnt want the muffler, just the pipes and tips so it was easy to ship.
I think The stock muffler is made of LEAD....
it's really heavy