I am somewhat confused. On friday evening, I traded my 135i for a new 2010 335i x drive, and to my complete surprise, it came with the N55 instead of the twin turbo N54. I thought that they were not coming with the N55 until MY 2011? I know you guys will think I am mistaken, But, it says right on the sticker that it is the twin-scroll turbocharged inline 6 engine. I like the engine but am somewhat dissapointed because I was going to add a few mods to it. Do you have any idea how I would go about finding a performance exhaust for this engine? Thanks!
2010 335i x drive, sapphire black coupe, Premium, M Package.