[onebluemcm]

Originally Posted by 86Zed

In terms of plug n play no tune options.

1. Easiest solution is to source a European Section 1 and unbundle the existing wire loom to extend the rear most O2 sensor down the driver side of the transmission tunnel.
2. Alternatively you can weld new O2 bungs in your existing USA Section 1
   https://www.zpost.com/forums/showthread.php?t=331906
   https://www.zpost.com/forums/showthr...ght=Bmwschnell

Thanks. I have found a used US section 1, so I might pick that up to modify and keep one OE. I reached out to Josh Severn because I am interested in a tune to see about ignoring the post cat O2s and egt with a tune, but I also want to understand if there are any issues with that, what the post cat O2 and egt are used for before I decide. So waiting to hear back before I buy a used Section 1 to experiment on...