[pdog]

Originally Posted by Dnyce

most if not all slip-ons retain the cat, yet are still illegal. just a side note.

Good point. I think they are illegal because they don't pass noise laws?

this idea is as dumb as the idea of banning black cars to lower pollution. remember that thread?

That was a hoax. http://www.snopes.com/politics/traffic/darkcars.asp