I was tempted to post something along the lines of "help me piece together the ultimate 3rd Gen exhaust" but your post is a great starting point. After nearly 19 years the muffler's pretty beat, and now that I've spent way too much time I didn't have reading all of the exhaust comparisons it seems like there are two real options: 1.) Replace jut the muffler, in which case welding in the 2.5" Borla XR-1 may be the best sounding/performing/best made option and the factory side-exit exhaust tip is maintained, or 2.) Replace the whole cat-back setup with the Borla Pro system (with similar side-exit exhaust location)
Does anyone know of either a better setup or have any advice (I've read too many threads on this now)?