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You guys crack me up.
UPsolute is the largest chip retuner/provider in the world. Its a German Company, much bigger then Dinan, therefore it has the power to do a retune before dinan does.
Also, every chip will be better on fuel economy. Its basic physics. Anything that improved hp, will improve economy.
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2009 BMW 335i /6 SPD Fully Loaded Saphire Black on Black Dakota Leather
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