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Old 11-07-2012, 08:26 PM
KeadysKids1984 KeadysKids1984 is offline
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Location: Geneva, IL
Join Date: Oct 2012
Posts: 12
Mein Auto: 2010 BMW GT 550i
DINAN Stage 1 or Stage 2 for a 2010 GT 550i

Interested in which upgrade is a better option? I heard that gas mileage improves with the Stage 1 upgrade. Any insight would be much appreciated.
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