I managed to find a ERR on ebay at a good price and fitted it on yesterday.....
so far so good, car drives much smoother and can tell that I was loosing alot of speed with gearbox grinding before....
Havent had a chance to give it a poke yet but will take it for a long drive today and update on how it goes...
And to be honest I cant tell any gear ratio differences yet.... all seems to be smooth & silky....