For those of us who are not skilled Tig welders with experience doing Ti welds, here is an introductory lesson:
http://www.millerwelds.com/resources...tanium-welding
It explains the "box" and recommends it for the best weld.
Were it me, I would just get the steel version of the brace . . . for much less money. But for the person who has a $5000 titanium exhaust, only the best will do and titanium is the best.