probibly, but if your carpet is really nasty or faded you can use my favorite trick of all time...
buy the cheapist spray paint at wall mart, pull the carpet out, tape off the heel pad on the drivers side, and go to town!
sounds sketchy, i know, but here's a couple of "after" shots of a car i refurbished the interior on. car had about 10 differant mouse nests in it before, carpet had dark brown stains and the smell was unvelievable. the paint made the carpet look new, and also sealed in the smell, and it even helps mask any threadbare spots :thumbsup: