Quote:
Originally Posted by 1SerieStud
Based on what premises? This actually makes little sense. I have driven both and I own an N55...my N55 feels a tad quicker.
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Dyno test from a shop I use. The N54 (335i) was mine, have seen two with N55 lately, both show pretty much the same difference.
Not trying to hit on either, both are very good, agree with comments that the N55 is more economical and runs cooler. Another item to consider they had to raise the boost on the N55 to 9 , N54 is 8 or 8.5 if I remember correctly.