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sparkyg · 12-24-2012, 01:23 PM

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.

12-24-2012, 01:23 PM	#8
sparkyg Brigadier General Drives: E90 M3 Join Date: Sep 2007 Location: Oil Country Posts: 3,282 iTrader: (5) Garage List 2008 E90 M3 [3.50]	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. __________________