Hi Guys,
I have a set of AST 4100 for sale, details as below
http://www.e90post.com/forums/showthread.php?t=544407
Asking for $1400 or best offer.
Since I'm from Hong Kong. The delivery will take about 10 days and cost $200 to ship to USA.
The screw thread on one of the rear shocks worn a bit, but already repaired.