It runs about $550-650 for the cheapest online price I think..

There was a used one on here I really wnatd but didn't have the cash for $350.

 

Here's a rear shot of the APEXi WS...I too recommend taking a look at this setup as MRGS400nSoCali suggested...however, on my setup, I didn't need to modify anything to get it to look right with my body kit setup...