Up for sale is a complete set of dual valve springs with retainers. I bought this a very long time ago from a friend who had the S spec engine and decided to upgrade to stage 3 cams, springs, and retainers. I'm not too sure about the mileage on this set, but looks to be in great shape. Great for someone who might be doing a light naturally aspirated stage 1 cams. $50 bucks shipped to the continental U.S.