You did notice those rims on Ebay have the wrong bolt pattern right???
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I really liked those rims right up until I saw they were only 7" wide.
I still think they look awesome though! (I'd get Gunmetal myself)
However you can't fit a 235/45 tire on it so there would be no point in changing out from my stockers with 225's.
215/45 are smaller. Way too small actually!
225/45 are almost the same tread width. They do have a sidewall advantage though. (4" vs 4.4")
However either size weighs more then a 225/50-16 tire so there goes the weight savings over the 20lb E1's.
{Using the same tire make}
With the Rev X it is ~41 lbs for a 215 package and ~43 lbs for a 225.
E1's with Falken 225's should weigh in at ~42 lbs.
For comparisson my E1's with KDW's weighed in around 46lbs. The brand & design of the tire can make a huge difference.
... 
. Looks like I am stuck with gunmetal... Seems to be a nice color either way, plus the semi-flat finish gives the car a racier look. Let's hope it works... 
The reason for me to change to lightweight 17's is to run a wider tire. No reason to run one with the same or smaller foot print.
