I bought front upper splitters from aliexpress, fit absolutely perfect. Only qualm is that it did not come with the double sided tape it showed in the pics, but was enough to put some 3m and it's perfectly. The carbon weave and color is pretty much identical to the m-performance stuff.
http://www.aliexpress.com/store/grou...27f437d2z8LADO
I found from them the ebay products review thread.