View Single Post
      12-27-2010, 09:55 PM   #5
dmaccioc
New Member
United_States
3
Rep
29
Posts

 
Drives: E90 328i
Join Date: May 2008
Location: New York

iTrader: (0)

my 07 had the n52, my 11 has the n51. only difference i've noticed is a slightly rougher idle on the n51, and lower highway fuel economy by about 2-3mpg on a long trip. if a true power difference exists, it isn't noticeable.