This may sound bizarre...
as I do have an old sube, wrapped from ebnd to the other by factory, and hardly a place for it tucked up into body without banging it up..
I found after welding the body, heat wrap doesn't even matter. If to speak of resonance and flow...
It is more than ironinc seeing this stuff targetted on unibodies that strain. Hondas, minivans, and subarus are indeed dramatic.
As of now, I am as old school as keeping the catalyst convertor wrapped, and I hung the exhaust from something I saw on a subaru outback (they do not try to tuck in like they used to). no thoughts of it. I humored a half wrap oe stylr up front, for ice and snow piles, animals, kittens poodles and wandering pedestrians.