Up for sale, I have my stock 2013 M5 mufflers. They are in great condition. Car has been a CA or AZ car its entire life, so no harsh winters to abuse them. They were removed when I installed my new Armytrix exhaust. Currently, the exhaust is in one complete piece in storage, however I can cut the mufflers from the exhaust and ship them out. Price is $500 including PayPal fees and including shipping via FedEx Ground in the lower 48 states. If interested, feel free to PM me.
-James