^^ same here.
It's pointless to get both at the same time. The upgrade kit is only for those that had stage 1 previously and now want stage 2. I am 110% certain about this. You can even check out the e9x forums and they either get S1 or S2....not both.
2014 LCI 550i M Sport | 3D Design Front Spoiler | BMW Performance Black Grills | BMW Performance Trunk Lip | BMW Performance Diffuser | Painted Reflectors | Wincos 30% Tint | Supersprint Exhaust | ACSSprings | MORR VS8.2 Rims 20x10R and 20x9F | Michelin PSS Tires |||More Photos of my car here|||