Originally Posted by WRBlueGDB-F
I'm guessing because the carbon hoods are lighter. These dampers are valved for the weight of the stock hoods.
You could try contacting them. They are on eBay. Their customer service was great in replying to all the inquiries I had.
the stock hood weighs just about the same as a cf hood. i have had both on my car and they seemed to weigh about the same. so it would ony be the banging of the hood popping open that would dmg the CF.