I'm guessing this isn't for the UK market.Mine was a 2011 R56 S as well! The N18 is a great motor and easy to make more power if you want. Be sure to keep watch on your oil as it does cannibalize a little bit in between oil changes. Also, make sure you take advantage of the factory extended warranty on the high pressure fuel pumps (10 years or 120,000 miles) as mine went out at 65K.
Happy motoring!