Just passing on what looks to be a decent deal on a bbi underdrive pulley kit on Cayman club.
http://www.caymanclub.net/cayman-chat/18986-bbi-under-drive-pulley-group-buy.html
I have no commercial interest etc. Participate at your own risk etc.
Looks to be for 987 and 996, 997 I'm not sure about 986's
Jason