I had the JB4 in my 135i and it was always upgradeable (I went thru 3 upgrades) and always free.
I expect the same for this. If you go on their web site (and forums) you will get all the information there
Gone but not forgotten: 2008 BMW135i Vert
Added: 335i, BSM/BLK, M-sport, Sp. Auto, Prem, Tech, HK, 19", Apps, Lots of Plastidip, H&R Sport