Morning when I was looking for a replacement ECU I looked for ages,to find one which matched the wiring on mine When I saw a breaker advertising the one I wanted I contacted him He said it was the early version of the ECUs fitted to the early MGFs and they were very rare . He didnt say ,they were interchangeable ,but I thought it best to get a matching one .Which paid off .I can now find cosmetic work to do when I feel like it .The body is excellent and the engine registers only 63000 which checking past MOTs seems to be correct Len