Various Resonator Styles?

[Tidmack]

A member of a 1st generation Monte Carlo Facebook group asked about factory correct exhaust for his big block car. There was consensus about resonators being on '70-'72 big block Montes. Another member suggested a Gardner kit if he wanted correct exhaust, which I felt like was mostly true, but I definitely had a different style resonator and more oval muffler than what the Gardner kit includes (had Gardner on a '70 SS car years back). Still, Eric's kits are likely the most correct kits out there.

I shared some photos of a '72 402 low, low mileage survivor car I owned for several years and it had more of a canister-style resonator, versus the more tubular style that is more accepted as "correct."

Has anyone else seen the style resonator I had on my Monte, and does anyone have any insight whether this style was plant specific, or when it was used?

Thank you,

Jeff