I just tried searching on the forums for a posting that mentioned about it being possible to add a 6th gear to an existing gear box. I can't remember what the original topic was (it could have swayed off the original topic when mentioning about the 6th gear stuff).
Is this possible to do and how much would it be? If it is reasonable then it would give a great cruising gear for the motorway while leaving the first 5 gears untouched so the performance will be the same.
Any help with finding the original posting will be awesome. Thanks