the same one as in this link..
http://cgi.ebay.co.uk/ws/eBayISAPI.dll? ... _500wt_901
I'v emaild the seller, but he cant find the end of his nose, let alone the part number on it
The part number of the one iv just had delivered is 13 54 1 703 695
but it's the wrong one
**Just to add, in using the M50 inlet+T/B on the M52



