Quik question you guys:
Would a set of 18s or 19s rims fill up the wheel gap without having to drop the car?

 

neither.
but if no drop then 18's will probably look better since it has more rubber.

 

Have to drop the car no matter what. If not, your car will look like a 4 x 4. :yack:

 

when upgrading wheels and tires, the idea is to get the same rolling diameter on the new set up as that of the stock set up...this means the gap will remain unchanged.

 

Exactly. Another thought is that when you have lower profile tires, it make the wheel gap APPEAR bigger, because of the smaller sidewall. So, by going to 19's, it would make the wheel gap look worse. If you are worried about clearance issues, at least get the H&R OE springs... Shouldn't be more than $250, including install.