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      01-27-2013, 02:16 AM   #4
rorkor
Second Lieutenant
United_States
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Drives: '11 E90 N52 6MT
Join Date: Feb 2012
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2010 E70 X5 35d  [5.00]
2011 E90 328i  [5.00]
The 330i has the same engine designation as the 328i, being an N52. It is configured and tuned to put out more hp but it's fundamentally the same. In regards to exhaust systems, the aftermarket systems are universal between the NA N51, N52 & N53 motors as the main differences are in the engine and intake systems. The stock exhaust is slightly different but aftermarket systems are free flow so it is all about note and style.
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