It's funny you should say that...I myself though't it might be the box, but the other thing I forgot to mention is this car has only covered 52K miles from new! And the one previous owner was shall we say, on the old side and hardly gave it any stick, so I can't see how the box could be fooked after this amount of time plus the car was totally standard when I got it and still is in the terms of boost, it ain't even chipped! (although I don't rule it out being the problem?)

Also, sorry, my noise is not a grinding noise, more like a "weeering" noise, it's really hard to explain... so not sure.....

I have a spare box of my old S2 (which had done 150K!) and that is solid with no noises, but I won't fit it, i'll use the current box to be rebuilt I should think (if indeed it is the box? )