I went from a muffler delete to a custom dual 2.5" setup with a Magnaflow muffler as the X pipe basically. I cannot overstate how much better the custom exhaust is, drone is all but gone and I can have a conversation in the car while cruising without having to shout.
https://www.summitracing.com/int/parts/mpe-12468
I didn't use any resonators and I honestly don't see that they are needed but exhaust sound is always subjective.
Cold start is a little loud but it quiets down when warm (like every other exhaust I've heard)

not the best picture in the world but, proof it fits. They would have to use 90's off the cats and then another 90 into the muffler