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Old 01-19-2013, 07:29 AM
KPerformance KPerformance is offline
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Location: Knoxville, TN
Join Date: Jan 2013
Posts: 2
Mein Auto: 335i
The software does not hurt the gas mileage at all. We usually see an increase of a couple MPG. But, as you know you are adding power and usually you want to get out on the road and feel it. So of course, until you get the added power out of your system, you wont see those gains. Haha.
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