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      12-10-2012, 05:10 PM   #49
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Drives: e90 Xi
Join Date: Sep 2012
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Originally Posted by cwg View Post
If thats the case, then you have a N54 motor. My understanding is that only the IS still uses the N54 motor, so I doubt that you have the same thing as an IS without the DCT. More likely you have the N55 with a factory installed PPK and it does not have overboost. There is no factory overboost on the N55
Dude, I have the same car, it most definitely HAS the overboost function, N55, these cars came out for a short period last summer, check the production weeks