I haven't heard or seen much on the forum about this option in cat-backs, the Areo cat-back. I went ahead and took the plunge anyway, because I'd heard the Corsa on track and they sounded raspy (too me), I don't like overly loud (I'm old 39 w/10 yrs. experience), I wanted deep throaty (the kind other cars 'feel' when passing), able to converse while driving, and Wow at WOT, and I found it. As a bonus, I got much more pop and burble which I love Below is a link of the Mfg. explaining the technology. http://www.youtube.com/watch?v=iDTTOa77efs&feature=player_embedded Here's some shots while installing at Tomball Dodge; Aero 3" Stainless Steel muffler, seems to be of good quality. Aero Mufflers next to OEM's (stock Gen III); The Aeros were 3" open straight through; Aero installed, but not tightened-up; All std. exhaust clamps were replaced with 3" SS 'band clamps' (like the forward one) and tack welded once set. Kit included nice exhaust tips, below is a pic of the OEM tips (not very fancy); Here's the car with the Tips that came with the kit installed and buttoned-up (I likey), the kit came with spacers that pushed the tip out ~1/4" if used (I used them). Over-all, very pleased I got the deep sound I was looking for with just enough 'Bling' with the extended tips. I've never experienced drone (so I don't know if these do), I've heard that drone is annoying and bothers the ears at certain RPM's? I can say, I have not been bothered or annoyed with the sound at any RPM, so I'd say these don't drone. I hope to get more educated opinioins at coming Viper events. If I was technically savy enough to post a sound byte, I would Does anyone have a copy of 'sound bytes for dummies'?