Compare stock vs aftermarket 19" wheels?
 

what's the weight of our stock 19" forged wheel compare to aftermarket(whatever the brand is) same inch or one inch bigger in size?
I saw many Z owners in this site installed awesome looking wheels in 19" or 20".:tup:
I would love to install better looking wheel on my Z too! :drool:
I know lighter wheel makes better in performance & better gas mileage, but i just wonder it will improve a " lot better " than
when it's stock because, i heard the stock 19" wheel is already ultra light weight. :icon17: