I just did some googling. There is a spot weld on the side of the bolt. Gonna have to figure a way to get it off.
I rounded off the bolt, I researched, it seems euro 4 ones are all welded!!!!! So dont know where to take it to now. A locksmith? ! If you live in toronto let go togetherI took off the exhaust and the bolt will not come out no matter what I do