I paid about £200 for a carbon one. I'm pretty carful with it TBH, I put some helicoptor tape on the underside and avoid sleeping police men. The stanced suspension set up makes it even closer to the deck. Even getting it off my drive I sometimes touch it. But it looks the bizzo, and finishes off the front end IMO. I think its probably the only acceptable exteior WR1 mod you can go with. I prefer the look of the carbon finish. I brought mine from fleabay but I think it came from a company called extreme carbon. I dont think the carbon one is as flexible to fit so the garage (which is a subaru specalist) had a real problem getting it on - in the end they called the manafacturer and got it sorted. People say that the carbon one is weaker / prone to cracking. I'm very happy with mine.
Photo not the best as its a bit dark: