i don't think bolt-ons and ecu remapping will reach the limit of the transmission. its the same transmission as the m3 with different software. you will break 400whp easily with all the mods you listed but thats still safe our this transmission. i have most of those mods with jb4 and havent have any transmission issue
this is the company that makes our transmission
http://www.getrag.com/en/252