The Power Pup Downloader is a programmer/tuner that downloads horsepower and performance enhancing programs into 2001-2007 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; read below for recommended use.
The engine tuning options below describe what tunes are available through the Power Pup and their recommended use.
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.
SPEED LIMITER / GOVERNOR
(03-07 Only)
The stock OEM speed limiter will limit the vehicle to a top speed that is determined by the OEM. The Power Pup speed limiter function allows the user to adjust the vehicles top speed from 40 mph to 140 mph in increments of 1mph on the 08 6.4L. On the 03-07 6.0L the Power Pup gives you the option to remove the speed limiter. The speed limiter will be displayed on the Power Pup screen when the user opts to change their speed limiter. The vehicle speed limiter should only be adjusted upward for racing purposes and should never be used on a public road or highway.
CALIBRATE OEM SPEEDOMETERS (03-07 Only)
We are ready to unleash the ability to change the speedometer to read correctly with the addition of larger or smaller aftermarket tire sizes. Download through the update Agent when released.
DIAGNOSTIC TROUBLE CODES
The Power Pup can read & erase diagnostic trouble codes. The trouble codes that are commonly seen on vehicles are described on the Power Pup screen, so it is not necessary for the end user to refer to the website.
HOW TO:
Install the Power Pup: the Power Pup plugs into the OBDII port beneath your steering column for programming.
Transfer to a new vehicle: return current vehicle to stock, update the downloader online and check for new vehicle compatibility, and then install on new vehicle.
Update online: internet updates are made available when new calibrations are developed and when new vehicle applications become available. Internet updates are available through our download center. The vehicle must be downloaded back to stock before the downloader can be updated.
Additional Information
Install Sheet