So, do you?

It's lighter than some of the replacement systems, yet heavier than others. Hope that helps. ;)
(ps. no clue)

But I do know that the stock cat section weighs about 2x as much as the random tech high-flow cat section.

Thanks, I was just curious because I replaced my stock one with a Tanabe Cat Back system and was selling the stock one. Needed to know how much it weighed for shipping purposes, then found someone local so it isnt a problem anymore. Thank you though.