> how to change the muffler on a 1991 Acura integra?
> Can't get the bolts off the connection between the muffler and the
> pipe from the cat.converter. Anyone got a photo showing the way those
> spring loaded bolts come out?
They just unscrew, like any other bolt.
However, yours are probably seized solid with rust. Cut them apart in the
middle to remove and replace with new. Get the expensive ones from the
dealer and don't use the cheap aftermarket ones.
And you're not trying to remove the muffler, you're trying to remove the B-
pipe. The muffler connection is beside the right rear wheel.
The Unofficial Honda/Acura FAQ