Okay, here is my first attempt at uploading video and audio clips to this website. Please bear with me! I hope it works...

A couple of notes:

1) Stock muffler: self-explanatory. This is what a rusty old muffler sounds like on a 1999 Vehicross.

http://www.vehicross.info/gallery/sh...o=8557&cat=500

2) Flowmaster muffler: This is the Off-Road Extreme model from Flowmaster. Ignore the turbine sound at the start...I didn't realize that a jet was flying overhead. Also, listen carefully at 19 seconds and again at just before 30 seconds, and you'll hear the obnoxious rattle. It only happens at one resonance frequency. I must track that down...

http://www.vehicross.info/gallery/sh...php?photo=8558