I purchased this a few years ago and decided not to use it. It is in excellent condition and preserves the look of having a catalytic converter while being a hollow system.
I don't know much about it other than it has a few numbers stamped onto the shield. No Mfr is given but the build quality is high.

Asking $175 OBO

I can be best reached at scott.carson AT verizon.net

Thanks for looking.
Scott