I see These Oil filter sandwich adapters for the mkIV.  It goes between the oil filter and the block.  Will they wrk on our 7m?  I like it, no need to drill and tap hole for oil temp sending unit, or any other oil sensor, cooler thing i can think of.  here is a pic.  If the MKIV dosent fit any one know our thread on the oil filter?  I think they have many sizes.