The unit is the complete dual vanos system for a S50B32. It does not make any noises and is in supurb condition. I replaced the original unit off the car as it got noisey. However this one has been on the car for approx 10,000km and makes no noises at all.
Excuse pic quality as it off my iphone.
http://s1244.photobucket.com/user/RBpowerhouse/library/E36%20M3%20Stuff