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Old 02-28-2011, 06:02 AM
gassy gassy is offline
BMW 7 Series Obsessed
Location: North Carolina Mountains
Join Date: May 2005
Posts: 338
Mein Auto: 2016 M4 Champagne Quartz
Although this falls in to the "if you have to ask the price, you can't afford it" category, what impact on gas mileage does the Dinan s/w upgrade have?
2016 M4 Champagne Quartz
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