there are also a few people (i found them on craigslist) in southern california where you can get poly lips. Boostedautosports in riverside, there's a couple in the OC i think.
I picked up a OEM rear lip from one
and a Mugen front lip from another
PM for contact info
i paid $50 for the front lip and $40 for the rear
both PU. By no means are they OEM quality and you may have to do a little work to get the fitment perfect. However for the price, it's hard to beat