So yes I did end up figuring out my issue. It was 100% unrelated to anything engine wise. I was convinced it was a miss or something engine related but it ended up being the transfercase clutches for the xdrive. I bought the Xdelete license to mess around with it and once it was in RWD only the issue was 100% gone! When you go back to AWD it does a clutch recalibration which solved the issue when back in AWD mode
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