when i was looking for my mystery vibration the mating bolts were part of my check... i actually thought my tranny was loose <img src="/forums/images/graemlins/scared.gif" alt="" />! it was a pain to do but i was able to check all the bolts. yes, it would have been easier if the y-pipe wasnt there... but in the past ive had bad luck when it comes to getting the exhaust to seal properly, ive grown to hate replacing the donuts or gaskets a few thousand times before getting them to seal <img src="/forums/images/graemlins/drunk.gif" alt="" />. if you drop your exhaust manifolds and remove the armor you should have enough room.