Brand new, the catalytic converter I ordered is $189 direct from Magnaflow... I used that Amazon Warehouse dealiewhopper and paid $25.73. "Item will come in original packaging. Packaging will be damaged."
If it's dented or bent out-of-round on one end... even if the threads for the o2 bung are damaged... I don't care about dents, off-roading will probably add to that. Out-of-round... I've had to fix plenty of shipped exhaust pieces that were dropped. And I have an o2 thread chaser.
...watch it show up the wrong size and as flat as a pancake.