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      12-13-2012, 10:57 PM   #2
hans007
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Drives: 2020 BMW M340i
Join Date: Aug 2012
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well the n55 has only been around for 3 years.

for a while BMW was putting N54s in the "40" marked cars like 740 or the M or IS cars.

so there is the N55HF which replaced that in the 40i cars for 2012 and up model year, so i'd assume the f30 will get that too. (for example the 2011 740i had the n54, the 2012 - 2013 has the n55hf)

relatively the n55HF seems to get rated at 15-20hp more than the normal N55
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