I was wondering if I would be able to fit 18x8 wheels on the front with a 38 offset, and 18x9's on the back with the same offset? Im going for the staggered setup and found a great deal on some wheels. Thanks.

just curious what rims are you looking at (i believe the stock rims are 18x8jj with a +50 offest...i've heard anything that is between 30-50 ...dependding on tire width...is okay ) but don't quote me.

The outside edge of the wheel will EXTEND an extra 12mm, don't think that will work on the fronts.

From thins site http://toy4two.home.mindspring.com/offset.html

yeah they will fit. as expo1 said 12mm more you can go to 23mm on the front without trouble.