07 G35S Sedan VQ35HR Cat Delete. O2 sensor clips

[DrewsykG35S]

Hey everybody, Drew here. I bought an '07 G35 Sport Sedan about a month ago with 116k miles on it. Six speed manual with the VQ35HR. Love the car. About two weeks ago, I got a CEL, checked the code, it was a P0420, for the catalytic converters. I'm in SC, so instead of new cats, I bought the motordyne ART cat deletes, and I'm currently trying to get them put in. Got all the bolts out on both cats, I'm down to the O2 sensors now, and that's all that's keeping me from taking out the catalytic converters. With a bit of research, I found a need an O2 sensor removal tool, which I'm about to go buy. But for the life of me, I can't figure out how the hell to get the black clips leading to the O2 sensor to come apart. I have a few pics I'll post, but if anyone has done this before, I'd love some advice. I gave up around 11:30pm last night, and now I'm going back at it.

Pictures of the culprit clips
http://imgur.com/zPR6smN
http://imgur.com/9UuHUPC
http://imgur.com/Sty5mrL
http://imgur.com/3M7e9yM

[elwesso]

I would imagine that in this picture... http://imgur.com/9UuHUPC ... That black tab you would lift UP.. most of the time those connectors like to get stuck together.

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