actually... i have the same body style lude and i'm going with a set of 16 inch slips on the street and 15s with slicks for the track. both are lighter than the stock wheels. prelude wheels, depending on which set you have are either 21lbs per wheel or 17lbs per wheel, the 16 inch slips are 13.5lbs per wheel and the 15s are 11.5lbs per wheel.
my 2¢
Zac