I can think of a couple of exhausts I could ID pretty quickly still. A Dodge 440 Magnum is pretty distinct. ITs the 50 cal MG of auto exhausts. Another one, the Chevy 348 my buddy had in his old ‘59 was pretty special sounding too. Which was pretty much like a 409. They always sounded wound too damn tight.
BKB

And one more, on my old Dodge van I installed headers and Corvair turbo mufflers. I can still hear that old 318 in my sleep. I especially like lugging on downtown streets between buildiings.