Okay, i just now got the new exhaust on Saturday.  Went with Dynomax Super Turbo, put on by Andy's Muffler in Snellville, GA.  The sound is very throaty, muscle sound, but not overwhelming.  Inside the car, it's a low rumble at idol.  Andy said he wouldn't recommend any other muffler.  Haven't driven it much yet, but my son heard me coming up the driveway and said it was perfect.  He's 15 years old, so he should know!