External Wastegate size for SR

Hey guys, thanks for the replies.

with a bottom mount GT28RS turbo, and stock manifold, would it be a good idea to use the vBand mount on a 44mm if the intent is to reroute the exhaust back into the turbo dump pipe?

I mean, do I need another manifold or can vband be mounted onto it? Woudl there be enough space for welding a flange?

Thanks
John