I would say the Dinan is probably your best bet, if your looking for something slightly more aggressive then stock with little to no drone/cabin noise. I own a Gintani race and love it but that is just my preference as for some of the other systems I have no experience with them in order to comment.
As I always recommend with exhaust purchase your best bet is to hear it in person and not take someone elses opinion(that's all it is, an opinion). Loud is subjective term based on the ear that's listening in, so your ear should be the only instrument to gauge the degree of loudness. Hope this helps, maybe if you had this advice to begin with, then you wouldn't be in this situation. Good luck friend.
Ash