Fun after work today: spent about 5 hours futzing with the exhaust layout. Reinstalled the DP with a new flange and revised O2 bung tacked in place, approx 2" set forward of previous flange. The issue that brought up is that now the wide part of the cat is closer to the top bolt securing the DS carrier bearing to the support bracket, and the lower forward support bracket/cross brace rubbed against the V band clamp
After much back & forth adjusting the Vband flange and the offset of the DP hanger support pins ( to raise/lower the DP and therfore the cat) I finlay got it to where is sits nicely, and doesn't rub when jostled around as it will under acceleration. No pics of that part.
With that aligned & laid out the mid section that will go back close to the Haldex. I was hoping to use the straight 4' section, but no way to get that to align with both DS support brackets, the cat and the Haldex. So, I had to cut it & add doglegs at each end to push it down and to the right up front, and then back up & to the left in back. That took a fair amount of time. This is not fun work in the driveway.
It will have Vbands at each end to make it easier to align & no more gasket flange to deal with.
I am moving the rear O2 bung from the pipe section (where Mototec places it) to the cat body. That way, I can rotate it to get best alignment again without having to worry about the gasket flange causing an alignment issue.
I tack welded everything except the Vbands, since those can be angled several degrees relative to the piping, I'll have to reassemble the exhaust, clamp the flanges & tack them insitu, then remove & bead weld.
After that, I have to deal with the inlet to the C30 muffler, which is offset differently than the AWD monster muffler, and will require a fair amount of work. I already had it in & out several times today to get the rear over-subframe pipe section figured out, it also weighs a heafty amount. Not really looking forward to that part, but it is a puzzle to be solved, so that's OK.