Take pictures of it and post it.
My guess is the resonator is gone and you've got some chambered drone-tastic mufflers.
I have no converter, with a resonator, and two Borla mufflers.
This was my old SLP everything setup...droned like crazy: https://www.youtube.com/watch?v=1AHTsY4TpYo
This is the new Borla setup: https://www.youtube.com/watch?v=pbE25ajERSU