It seems that the dealer cannot make a decision on whether the box needs replacing, they have to carry out some tests, involving driving at certain speeds and reporting on the noise, the results are then sent to Morgan who will eventually get back to the dealer with the answer. Mine has been with the dealer for a week now, and no decision has been made by the factory yet. Even if the factory say that the box can be changed, they might not have one available, so there could be a wait of several weeks, and as you say Donaldo, there is no guarantee it will be any quieter, it could even be worse.