http://www.tirerack.com/wheels/tech/...jsp?techid=101
The offset on the LS wheel is 60 i believe. You would want to find a wheel as close as possible to this number. The lower you go the more the wheel will stick out from the fenders. example, you seen those ricers with wheels that stick out like its going to pounce or something.
The wheels i have have a 42mm offset.