Good luck. Only one I ever found was from Bangastang and that asshole is a thief that will take your money and never deliver the product. I did see a $450 carbon fiber one once.
I also tried the plastic wing pieces to fill in the ends of the stock cover and those looked like shit. The plastic is a different texture and finish than stock and they only have one mounting bolt. Mine vibrated and cracked in 6 months.
Trufiber makes an all carbon fiber one piece cover (similar price to Bangastang), but I tried one and the fitment was terrible.