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Assuming you have a 2010 like your driver profile says then you have a N54 and this should be posted in the N54 section.
I would upgrade turbo before fueling. You will still be able to run the turbo or turbos (N54) on the stock fuel system. Which system you chose will determine if port injection on pump gas makes sense or not.
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2011 E92 335i | 11.7@125 SOLD
2017 Camaro SS | 12.7@114 SOLD
2019 Audi TT RS | 10.5@130 SOLD
2020 F97 X3M | 11.0@123
2023 G80 M3 xDrive
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