@jb1490 posted:
Specs like how the ends are attached are not often given. I would speculate that those are threaded connections rather then welded. If they are welded, then they probably are friction welded.
Conversely if threaded then a Pantera friendly end can be attached.
In this case you won't know until you have one in your possession?
The higher temperature rating is something to be desired though.
I've got 180° headers on the car. I have only about 2" clearance to the header tubes which is definitely the key factor for me.
So far I have not found a long term solution.