I've just installed the Ashcroft conversion on an 06 Td5 90, using an uprated torque convertor, and Compushift. Currently working with Dave Ashcroft on the gear shifting, as the settings that ashcroft ship with their compushift, Isn't quite as good as it could be. I drive a Disco Td5 Auto as well, and so can make good back to back comparisons, trying to make the 90 work better than the disco, so it doesn't rev so hard all the time, unless I want it too! lol