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bully dog tuner

  1. 6.7 Performance Parts Discussion (2011-2016)
    I have a 2013 6.7 Powestroke. I pull a trailer most of the time and run about 50,000 miles a year. I have been reading some of the posts about the different tuners and options to increase fuel economy and boost power. I have several people around here that swear by the Bully Dog tuners. I've...
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