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      12-24-2012, 01:23 PM   #8
Brigadier General

sparkyg's Avatar
Drives: EBII 2014 F31 328xi
Join Date: Sep 2007
Location: Oil Country

Posts: 3,493
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Great stuff Bokke. I have an E90 M3 and I am considering the change too.

How much better is the gas mileage? Can you quantify a bit? I am at 14.5 mpg right now all the time in the city.