I have looked on jPart and elsewhere and I cannot find what size bolt is used for the exhaust hanger to pipe connection at the front. Located where the red lines are. The pipe has a captive nut on the side closest to the front of the car and the bolt goes through the back of the hanger and into the captive nut. I noticed mine was completely missing and the pipe was not even being held up. I have it pushed back up on the holder on the bottom of the hanger, but still need to put a bolt in. Judging from the rest around, it seems like it'd be an M8x16mm (unsure on length really, but 16 would do it). I cannot get it to bite though. I don't know if it is an alignment issue or if the thread pitch is not what M8 bolt I have.