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      12-12-2012, 10:22 AM   #21
1Pirate's Avatar
Drives: 2009 BMW 135i
Join Date: Aug 2011
Location: Greenville, NC

Posts: 602
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It is my understanding that BMW began using the N55 engine in the 2011 model year 1s, but I'm not certain of that. You don't know what model year your car is?
2009 BMW LeMans Blue 135i/Dinan Stage 2 tune/Alufelgen SF-71s/M3 suspension components/Koni Sport adjustable dampers/ETS FMIC/M3 paddle shifters/Alpina B3 TCU flash
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