Do I want Borla's

[bfuqua]

I am considering a Borla Exhaust system for my Tbird. I would like a richer throatier sound but do not want to wake the neighbors up at night. A little more like a Mustange GT or even like a Cobra would be great. Does anyone have experience with them and how did the project go?

Could you tell a difference in performance or fuel economy? This will help me justify them to my wife....