Good Bye Flowmasters!

Ok my car has had flowmaster 3 chambers since 2003. I have an X pipe with mandrel bends and tail pipe out the back. I like the sound of my car and when I run it at the track people comment on how quiet it sounds. I put the 3 chambers because I didn't want that annoying sound. Does my car have the same annoying sound everyone is refering to or is having tailpipes the key to tune it down? Here are a few clips. The one getting on the freeway is with the windows rolled up. Jayson
http://www.youtube.com/watch?v=UNOpzTWKRpM
http://www.youtube.com/watch?v=C1qSof8rN20