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The Power Pup Downloader is a programmer/tuner that downloads horsepower and
performance enhancing programs into '01-'08 GM Duramax with either a 6.6L (LB7,
LLY, LBZ, or LMM) diesel engine in one SKU (stock keeping unit). The Power
Pup will also work on the '06-'07 4500 and 5500 series vehicles as well. The
downloader offers up to three different Engine Tunes above stock to accommodate
various driving conditions.
Stock: Choosing the Stock engine tune will result in no change to engine
horsepower output. All other downloader features can still be accessed if the
Stock engine tune is chosen.
Tow: This engine tune is recommended for use while towing, it is a mild tune
that increases performance by 40 to 50 horsepower. This is the only tune that
we recommend you tow with other than stock.
Performance: This engine tune will yield up to 75 extra horsepower. Pyrometer
and boost gauges are highly recommended while using this tune.
Extreme: This engine tune will yield up to 120 extra horsepower. Pyrometer
and boost gauges are highly recommended while using this tune. This tune is
not available for the LMM engine.
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Important Notes!
