Hi folks. I have a Gsx1100et that I want to do as a project. It got taken off the road a few years ago due to head problems. I known I have seen gsx1100ets with Efe heads but I don't know what is involved. Is it a straight swap or is there more involved? I. Would appreciate any information or a prod in the direction of a thread that has the info. I did a search but not found anything. Thanks in advance