i guess it depends on your definition of snug. i just put some on my 04 (with lumbar) a few weeks ago and once all the straps were pulled taught thet seemed pretty good to me. now, they are not so snug as to appear as though the seats are upholstered that way, but they are pretty good.
did you make sure to pull the straps on the inside of the covers through where the seat and seat back meet? once those are tightened up it really helps with the fit.