Let's see...where to start: Corsa (no drone, but a little raspy), Stainless Works (real loud and raspy), Magnaflow regular oval 2.5" (nice and mellow, no rasp...almost too quiet), FRPP GTA's (little rasp on startup, no drone at any speed, nice volume around town---you know you are in a performance car as opposed to the Magnaflows, get loud but not overbearing on hard acceleration). GTA's for me!!
I may have another system as well...but forget!!!