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F10 Procede / Dinan Chip Tune
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08-20-2010, 04:49 PM
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Jimefam
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Drives: 2011 550I Msport
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Yeah the 550i engine is the N63 and the M motor is S63 but the only difference in the two engines I can find online is the manifold design and the turbos. Doesn't mention forged internals although I had assumed they were.
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