In my opinion...supercharging definitely shortens the engine life. By how much? It depends on the quality of the kit, how much more you are asking over stock and the operator.
Personally, I wouldn't go FI with this engine...the last NA ///M engine ever??? I would just wait for the next turbo M3 and just get some software.
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2018 F30 320iX Melbourne Red
2011 E90 M3 Monte Carlo Blue
2004 E46 M3 Imola Red
2000 E36/7 Z3 Steel Blue
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