http://www.kbcarstuff.com/H11_8000k_Xtreme_Xenon_HID_Conversion_Kit_p/xt-8k-h11.htm
So I narrowed it down to this kit…
The wrx takes an H11 bulb. for low beams… will this kit fit in the OEM projector housing?
Here is a pic of the wrx headlight for more reference. the low beams are in the projectors and hi beams are closer to the grill in the reflector type housing.