at the end of that section, yes those are the first resonators
but if you look at the ‘pig-in-the-python’ right after the exhaust manifold, it is actually 2 catayltic converters in there.
#1 is pointing to the pre-catalyst o2 sensor bung. That little circle. There’s another one half way through the bulge…that’s where the post catalyst o2 sensor goes. Then you have another catalyst after that, then pipe and resonators etc to the tips.
So there are 4 cats, 2 on each side. They’re just both housed in the same bulge. Gutting them would be nightmarish I’d say. You’d have to take the whole exhaust off, and try to angle in there while it’s on the car. Guess you’d need a good vacuum and a scope to see how well done it was. Or you could pull the engine to really get at them.