I have always been a fan of the stock intake system
It's also a BIG RED FLAG IF the car ever has to go back to the dealer quickly, before one has the chance to switch it out for the stocker! (At least the non-Mountune/ST 200 aftermarket ones are.)
I did buy one of the drop-in, Ram Air foam filters to try (NOT expecting anything out of it!!) once pollen season is over.