Exhaust stud question

Hey I have a s6 2007 i was wondering what size stud would I be able to thread into it on the y pipe in the blue circle in the picture below and as well as the red one. Just wanted to know if anyone has any idea before I remove it and have to find a size for it. I’m more concerned about the blue one.552209be688841804d6bb640c06ae5a3

I’m assuming it’ll be a m10

It should be a M10. Thats the over all size.

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