2009-2013 Chevrolet Silverado 1500 4.3L, 4.8L, 5.3L, 6.0L and 6.2L Custom Tuning Tune Service:AutoCal Tune & Hardware [$749] Torque Management Modification/Removal

2009-2013 Chevrolet Silverado 1500 4.3L, 4.8L, 5.3L, 6.0L and 6.2L Custom Tuning Tune Service:AutoCal Tune & Hardware [$749] Torque Management Modification/RemovalBlack Bear Performance offers our AutoCal custom tuning service for your 2009 2013 Chevrolet Silverado 4. 8L, 5. 3L, 6. 0L and 6. 2L. Gains vary widely by engine type and configuration. 4. 8L and 5. 3L engines will typically see a 15 30hp 15 20ft lbs gain. 6. 0L engines will typically see a 25 30hp 40 50ft lbs gain. 6. 2L engines will typically see a 15 20hp 20 25ft lbs on 91+ octane. Combine that with improved shift patterns, towing capabilities,

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