interesting thread! I was just messing around with some wheels yesterday.
I weighed my factory 18s with PS2s as well as my D-force 18x10s with PS2s
My factory wheels/tires weighed:
Front 47.8 lbs 75% tread remaining
Rear 49.7 lbs 20% tread remaining
D-force LTW5 18x10 with brand new PS2s 275/35/18
Here are my pics- Somehow the pics of my stock wheels have magically disappeared so...