US BBS RX wheels are cast. Japanese made BBS (Spirit R) wheels are forged. :bigok:

I'd go w/ the cast RX's though cuz they are easier to get and cost less.

 

I would consider something wider, too. I went with big wheels to clear my brakes, but I definitely wanted to get some more rubber on the road since I was spending so much money. My street wheels are 17 x 8.5"F and 9.5"R, and my track wheels are all 18x10". You should be able to go 18 x 8.5"F and 9.5"R or perhaps 9" at both ends without too many changes to avoid rubbing. Since you are spending the money for good wheels (good choice!) it just makes sense to me that you would want wider tires as well. There is some consideration to be given to load rating, too, with bigger diameter wheels. I personally think 17s are the "best" size for the car from a performance perspective (I just got 18s for the track so I could run wider tires, given the tire sizes available -- I would gladly switch to 17"s if I could find some 285/35-17 road racing tires). 17s give a better ride, too. But I understand that aesthetics are a big motivator for many buyers.



-Max