Don't know yet Lee, probably WILL change.
If they don't hold up, I will re-blast them and paint them in industrial silver. (I know that paint lasts) I re-welded both and welded them some in areas around the flange for porting.
Heck, I even welded up the OD in the "creases" at the bend and ported the ID so the "crease" is gone. LOL!!! Too much time on my hand I guess.