Thread: new to BMW, just ordered my 135i
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      05-07-2013, 02:27 PM   #6
tuj
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Drives: '13 135i
Join Date: May 2013
Location: Stamford, CT

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Yes obviously the car would have to be completely remapped for a larger turbo...

So how much hp are people gaining from tuning the stock N55 engine?
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