If you want quiet... RS*R is what you want.
Recently, my bro replaced his old, noisy custom exhaust for an RS*R ExMag for his Accord... It's really quiet & looks very sleeper-ish except for the tip. He actually claims that the RS*R exhaust feels better than his old one!
He loves it & I'm quite impressed by it's quietness. (Is that even a word!?) In my experience... for stealthy looks & quietness, RS*R ExMag > others... hands down!