Thread: Is anyone working on piggyback tunes for the 550i N63 engine?
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      08-11-2010, 06:24 PM   #4
Jimefam
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Drives: 2011 550I Msport
Join Date: Jul 2010
Location: Cumming, Ga

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Actually I got a quote from RDS for their stage one ems. It adds 54 hp and 94 ft-lbs, it's available now for 2k.
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