Searched for days, cant find the anwser. Whats louder on a 03 hemi?

1. After cat, a single 3" to one super 40 then dualed to both rear tires with 2.5" pipe.

2. Or after cat. y-piped. 2 2.5" pipes ran into one super 40 for each pipe then dual out rear tires.

Would a x or h pipe be helpful for the second choice. thanks. I just needed a quick anwser. My exhaust is getting done on tuesday.

p.s. i have a highflow magnaflow cat if that makes a difference.

Thanks.

 

Can't speak to choice two but I have the exact setup that you speak of in choice one with the super 40 exiting in dual 2.5" pipes. Personally, I don't think it is that loud at all. So I can't imagine that the other choice would be even quiter, but that is just my take on it.