Jeffrey, oh Jeffrey.
1) You really need to get familiar with the return key on your keyboard. Separate sentences now and then and it makes reading your oh-so-long discourse possible. I lost my place twice trying to wade through it.
2) Me and a buddy who owns a boxster have tried what you are suggesting and it does not work. Been there, done that.
The best way to get more sound out of a factory muffler is drilling 1 inch holes just outside the muffler on the inlet pipes and welding on bypass pipes around to the central exhaust point.
This is called the Pedro Sport Exhaust and it works well. Check out
www.pedrosgarage.com for more info on this.
Here's another guy's YouTube video on it.
http://www.youtube.com/watch?v=zv_ljlNOe7M&feature=related
