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WHAT IS THE BEST ELECTRONIC UPGRADE
What is the best one for the 2008 6.7L I am looking for performance for towing, but mainly better milage. Also I need something that wont be detectable by the dealership. So I need to be able to unload the program, when service is needed, then plug it back in and upload afterwords. any help...- MUDDINSQUID
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- Forum: 6.7L 3rd Gen Cummins
