Hey mate,
For the facelifted gen3 there isnt a lot of options as far as front lip.
There is only one option that is designed for the Facelifted Gen 3:
http://www.japanparts.com/images/ImageFromDB.php?base=1&no=4588http://www.japanparts.com/db/partslist.php?KEYWORD=&dealer=1&car=8&middlesmall=2:&maker=&VOLKEY=&page=5Cost from Japan Parts about $600 plus delivery (Best to speak to phat if you go down this route)
There is a PU front lip for an MY06 WRX which fits the Gen 3
http://forum.liberty.asn.au/viewtopic.php?f=44&t=7611 Price around $260 + Delivery
Or there is the one i have on my car which is a fibreglass lip


The lip costs about $150 (+ Painting) i think from somewhere near the shire, will look into the name of the place for you
Or my personal favourite but you need a new front bar as well

There are also a few other options available on Japanparts.com, but once again find the part number and speak to phat
Good Luck