Looking to get a rear window roof spoiler for my white g37 sedan now that I just added a lower stance (coilovers) but I need some help finding the right one.

Looking to find one that's not too big I'm pretty overwhelmed by all the different ones on ebay and amazon.

Any suggestions / help is appreciated!

Thinking black on white not color matching to the body.

The Extreme 3rd Gen is nice but I want a little more lift.

Considering:

http://www.ebay.com/itm/272448978244?_trksid=p2060353.m1438.l2649&ssPageName=STRK%3AMEBIDX%3AIT
and

http://www.ebay.com/itm/322260043950?_trksid=p2060353.m1438.l2649&ssPageName=STRK%3AMEBIDX%3AIT