My car had a new BB fitted a few weeks ago, probably from the same batch as Planenuts, but I decided rather than pay for the NVH kit, I would just try the new BB to see what it is like, and, hey presto, it is virtually silent, well, if not silent, a slight whine when hot, but nothing to make me hot under the collar, so I am happy and have saved the cost and weight of the factory NVH kit.
The moral is, try a new BB first as the new ones coming from Quaife seem to be better now, if it's still nasty, then the NVH kit won't cost any more later.
