I have 1 Project 321 Billet/Carbon Fiber Gas Cap that I need to sell. It was used for display so it will be sold as an open item. It is flawless and has never been installed. It's the Red Cap (w/ the Carbon Fiber Insert) and will fit a Raptor 660 or Raptor 350. It all ready has the vent tube with a matching check valve installed. I will let this one go for 69.99 plus shipping. This Cap retails for 89.99 plus the cost of the vent tube. Please post if you're interested. Thanks.