Looks like a valeo PP. The disk is made of ceramic which is an agressive material. You'll experience chatter on break in but once its broken in the chatter should go away. Haven't heard anything about fidanza clutches but I know that Spec uses their alum flywheel and just slaps a spec sticker on it. If you go with that clutch try and find it outside FL on ebay. You'll pay tax on it if its in FL. That should hold 500rwhp. Puck style clutches have a less than smooth engagement. -Mark