I've been thinking of building a big finned head kit for you XR650L owners. You would have to find a good tig welder in your area to weld them on or send me your head and I can do it for you at a discounted rate for the ADV members here. The question is would anyone be interested in a kit like this that you would have to weld on"DIY"????? Here's one I built a while back. If I get enough interest I will start building the kit for youse fella's.. Also some tall valve cover caps like we used to run on our old RS600 flat trackers that are finned about an 1 1/4 tall or so? Give me some feed back please what you guys would like.