During the aftermath of the MK9 release, the TRMK staff collectively made the decision that trading DLC/unlock codes would no longer be permitted, and at least for now, this still stands.

So the next time another topic pops up asking about this, I'm not gonna close the thread and give you a feigned, pseudo-friendly response asking you to please not do it, I'm just gonna yoink it into oblivion and silently hate you for all eternity.

You can read the original announcement here: http://www.trmk.org/forums/showthrea...nger-Permitted