The Strong Silent Type

"You can build a quiet exhaust system that performs almost like open headers."

By Jim Hand & Tom Hand

http://www.pontiacstreetperformance....p/exhaust.html

 

That was a good read, and kind of drives home the point that on a thirdgen, with the mufflers mounted at the back, that your choice of muffler is best made based on what sound you prefer, and not the presumption that you are going to impact your performance.