Bank1 lean?

Car is a 2012 auto, vmp gen2r car. I recently installed long tubes ( with bbk extensions) and have been having a driveability issue for awhile before the install, so i replaced the MAF and that helped a bit.
So out of curiosity after popping a p2195 code I plug my sct in. And bank 1 reads just flat 0.00 bad 02? Or maybe a wire is loose? Any insight would be great as I'm not even for sure what side bank 1 is.

Just thought I'd update, replaced maf, both upstream 02's. KAM reset and reloaded my tune. Runs perfectly now buddy brought over a scan and saw some misfires but nothing super bad. So plugs will be next, happy to be drivable again!

O2 extensions are a bad idea. Get rid of them. You can unclip the factory harness to get more length or run the F150 O2's.

Do NOT run o2 extensions.

I had some SCT flash glitches before, a reflash always fixed it. First time firing up the coyote swap, fired on the first try and idled great. Engine cut off as soon as I unplugged the x4. LOL It would even run with my OBD scanner plugged in, and stall as soon as I unplugged it. I also found a lose ground by the right headlamp, may have corrupted the flash. Low voltage issue when flashing pcm = BAD.

Are the extensions for the wideband sensors or for the downstream cat sensors?

The widebands