Originally posted by: korrinth
Ummm...Neil, I think you're a little wrong about the flowmaster-type exhausts, the reflectors aren't just there to make the car sound more aggressive, it's more a matter of utilizing the inherent traits of sound waves to force them to cancel eachother out. In the case of flowmaster exhausts and the like, certain tones are cancelled out and the lower, more aggressive tones are preserved. If you want to learn more, you can read up on exactly how mufflers work at
http://www.howstuffworks.com/muffler.htm[/q
Good call man, I was just about to post that.
Exactly how active noise canceling headphones work

Those things are the best :biggrin: