About halfway home - finished welding tubing on both sides back to the mufflers. Welded V-band clamps (red arrows) on both muffler inlet tubes and mocked up the H-pipe (yellow arrow). If I ever have to drop the trans for any reason, I can disconnect at the headers and mufflers, unplug the O2 sensors and remove the tubing as a unit. If you plan for the worst, you might escape it.