Im a little bit confuse.. I have no idea which tires look good on 18 inch rims.. I found three different kind of size are 215/35/18,
225/40/18, and 235/40/18.. Which size are good for 18 inch rims and can handle on Maxima? Which size are low profile and does it look good on Maxima? Let me know..

CORRECT ME IF IM WRONG
the 215/35-18 are too narrow and would be good on an 18x6.5" rim for a small car 225/40-18 are the same width as the tires on your car now assuming you have a fifth gen w/17 inch wheels they are 225/50-17 stock for better handling you want to have an 8 or 8.5" wide rim instead of the 7.5" wide stock wheels. so you will want 235 40 18 or 245 35 18
I THINK
i could be wrong
WHEELMAN

Thanks bro.. I heard a rumor about people tell me about 235/40/18 look good on Maxima.. What ya think?

what's your rim size?

18" by what?

235/40-18 or 245/40-18. You will be happy with either. Go take a look in the Tires and Wheels forum. Also check out this thread: Wheels Pics. Y2KevSE has a close-up of his LE37K and 245/40-18.