Hello

Any opinions or preferences on Walker cats and Magnaflow cats? Or are they pretty much the same?

My car is a 1987 Mercedes Benz 300E and the California approved cats are:

Walker - 81133

https://www.amazon.com/Walker-81133-Universal-Converter-Catalytic/dp/B01HQSIIVG

and


Magnaflow - 338008

https://www.amazon.com/MagnaFlow-338008-Universal-Catalytic-Converter/dp/B00C9XD0HG

the magnaflow is a 2 in 2 out and the Walker is 1 in 2 out. Is this ok? Will the muffler shop be able to make either work or is there an error in one of the application listings?