I just put a new cat in.. the old one was, well there wasn't.... And when I heat the car up i am getting a lot of smoke from under the car.. I can't really put a color to it but if anything it is a really really light white color. There isn't any smoke coming out the tail of the car just from underneath.. oh yeah and the smoke smells like ***.

 

its the cat breakin in
itll go away in a few days

 

ok.. what I hoped.. I ran the car twice for about 20 minutes both times and was getting worried.

 

That cat will smell for much longer than a few days.
Possibly a month or two, mine still smells, but not too bad anymore.

 

Mine still stinks too, replaced it in Oct. Had a severe carb iceing issue one day and I swear the cat was white. Smoke was coming out from under the car and everything. It stunk before and after, too bad for the people behind me....