Carbon Concepts alloy carbon fiber looking seatpost clamp is designed exclusively for use on carbon fiber frames. The bolt tightens against the frame on a tangent and is friendlier to carbon fiber frames.
Replace the factory alloy clamp with one of these and at least it will look a lot cooler!
31.8 for 27.2 seatposts ~ 21 grams
34.9 for 31.8 seatposts ~ 22 grams