Bully Dog Power Pup Downloader for GM Duramax

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The Power Pup Downloader for the 2001-07 Duramax has power programs of 50, 70 and 95 horsepower, with the ability for the serious off-road driver to upgrade to 150 additional horsepower. The Power Pup also gives the driver the ability to remove the speed limiter and has the ability to adjust the speedometer for different tire sizes. As an added bonus the downloader also contains OBD2 functions to scan and erase engine codes