Yeah, a vband disconnect would be a simple addition, as would a second o2 bung. As a tuner for quite some time, a second o2 bung for a quick wideband install is always convenient.
So, to clarify then, we're talking:
A simple O2 housing that's 2.5". I'll make a recirc. one, and a "screamer" version. Each will incorporate an O2 bung, and they will divide the turbine housing once bolted to the turbo.
The one piece downpipe will be 2.5" flared to 3". There will be an optional vband disconnect in the former O2 housing/dp connect region. There will be optional single or double O2 bungs.
I'm working hard to get this done soon. I've been talking with the flange maker daily, and we're workin on getting the flange made specifically for these applications. Be patient for me, and we're gonna get all this stuff made soon.