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HomeELECTRICAL SYSTEMSPERFORMANCE CONTROL & ENGINE MANAGEMENT62590G
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 GM LMM engine.