Probably best to file this away in unobtanium. TOM's just dropped their aero and exhaust kits for the NX200t. $1,500 for the aero kit and $1,300 for the exhaust. But only in Japan!
Best thing to do is to contact a local tuning shop which a quick google search should bring up, or browsing the local forums.Too bad its only in Japan, but it is still great to watch the video. Would you be able to get the parts shipped from Japan or are you just S.O.L if you don't live in Japan.