Porsche calls out Nissan

I am BY FAR not a gtr fan, but they were obviously racing at a dragstrip not sanctioned by Nissan and they still had their governors on. why else would there be a 1 second difference in ET but identical MPH for both?

The last time I went to the track, there was a gt-r there. He was running mid-11’s all day long. and that was at a sanctioned track. (believe he was trapping 122 mph?)