The q4 I put on my bike was similar but not quite as bad.
Pull the mid pipe over by hand then put that bolt in first, dont tighten it all the way untill you get the bolt in the rear mount started or it wont line up.
I had to use a slightly longer bolt I had left over from something else too, the one that came with the pipe was too short it wouldnt reach, you may have to get a longer bolt too.