:) Nope. I wish I were one of those..
I bought the exhaust the same time I bought the bike. But I kept on waiting for the run-in period to be over. (but got too busy to ride and putting on miles in small Hong Kong may take months).
The the entire time I thought I bought the SIL motor since spareshack listed the item on ebay (I am only selling it at what I paid for it).
Recently when I am debating whether to keep the S4R, I found it was a spark. I never even opened the box....
I want to get the Sil for the S4R.