There are many threads that answer your question. A quick forum search will reveal all of life's mysteries.
![BigThumbUp](http://www.the370z.com/images/smilies/biggthumpup.gif)
some threads even include videos so you can get an idea of the sound for various exhaust systems.
Having said all that, I recommend the exhaust that you like the looks of, sounds of, and suits your budget best.
Also, welcome to the forum