I just got the system put on a few weeks ago to my 14 rt. It is great for the price. The sound is not the loudest, but it's deep and has a nice rumble. There really isn't much drone, or at least it doesn't bother me and isn't loud. I have noticed that eco mode does not turn on as easily and that I have lost a couple mpg on average. I'm still trying to figure out why. Overall, it's a pretty nice system, especially for the price. If you want LOUD, try something else, but if you want a nice sound, deep and nice at WOT, then this is a nice system.