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      08-18-2011, 11:02 AM   #10
jaf89f
Second Lieutenant
United_States
11

 
Drives: 2008 128i
Join Date: Jul 2010
Location: St. Louis, MO


Posts: 283
iTrader: (0)

I believe the 128i only comes with the three stage if you have the n51 variant which has different compression ratios made for emissions purposes